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Sample - Click above to make a new math worksheet (PDF).
Name _____________________________
Date ___________________
Ratios
State whether the ratios are proportional. Write yes or no.
1.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.



2.  
161

35
  ,  
207

45




3.  
15

17
  ,  
71

85





Solve each proportion.
4.  
1

2
  =  
y

10




5.  
45

c
  =  
75

690




6.  
14

105
  =  
s

15





Solve each proportion.
7.  
x

153.6
  =  
115.5

288




8.  
13

f
  =  
39

48




9.  
18

45
  =  
k

10





Create a proportion from each set of numbers. Only use 4 numbers from each set of numbers.
10.   40, 64, 8, 5




11.   756, 75, 240, 720, 25





 

Key #2
aKey #2
Complete the unit conversions.
12.   416 ounces to pounds
416 oz    
          lb

          oz
  =    ________  pounds
13.   120 quarts to gallons
120 qt    
          gal

          qt
  =    ________  gallons

Complete the unit conversions.
14.   29,920 yards to miles
15.   3 liters to centiliters
16.   11 gallons to quarts
17.   32 quarts to gallons
18.   10,000 grams to kilograms
19.   24 kilometers to meters

Find the unit rate. Round your answer to the nearest hundredth.
20.   1536 calories for 6 servings of pie
________ calories per serving



21.   type 731.6 words in 12 minutes and 24 seconds
________ words per minute




Fill in the missing dimensions. Round your answer to the nearest tenth.
22.   The scale of a map is 2 in = 15.8 mi
map:  ________ in
actual:  11.9 mi




23.   The scale factor for a model is 9 in = 15 yd
model:  48.9 in
actual:  ________ yd





 

Key #2
aKey #2
Use a proportion to find the unknown length in the pair of similar figures.
(drawings are not drawn to scale)

24.  
length of sides:
OP  =  91 in
MN  =  49 in
NO  =  98 in
PM  =  56 in
        
BA  =  ________
CB  =  112 in
DC  =  182 in
AD  =  196 in
25.  
length of sides:
NO  =  90 cm
PM  =  90 cm
OP  =  20 cm
MN  =  ________
        
JK  =  9 cm
IJ  =  2 cm
LI  =  9 cm
KL  =  2 cm

Complete.
26.   A scientist counted birds in a cornfield. He counted nine crows, ten jays and fourteen hawks. What was the ratio of jays to hawks?

27.   Of the approximately 103,000 insect species estimated to exist on Weird Island, most have yet to be discovered. In fact, just this year it was estimated that about one-fourth of the species presumed to exist on the island had been discovered. What is the ratio of discovered to undiscovered species?


 


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