FIND MISSING QUANTITIES IN PROPORTION WORKSHEET

Solve for the unknown.

Problem 1 :

3 : n = 5 : 20

Solution

Problem 2 :

a : 42 = 5 : 6

Solution

Problem 3 :

50 : 75 = x : 1/2

Solution

Problem 4 :

7 : 3.5 = 21 : z

Solution

Problem 5 :

0.6 : g = 0.78 : 0.325

Solution

Problem 6 :

7/8 : 3/16 = t : 5/8

Solution

Use proportions to solve the following problems.

Problem 7 :

A box of 500 vitamin C tablets sells for $4.80. How much would 125 tablets cost?

Solution

Problem 8 :

If you can open 12 cans of soup in 5 minutes, how many cans of soup could you open in 45 minutes?

Solution

Problem 9 :

A manufacturing plant can make 750 microwave ovens in 9 days. How large an order for microwave ovens can the plant fill in 33 days?

Solution

Problem 10 :

R. Habsburg has a three-fifths interest in a salt mining operation. He sold five-sevenths of his interest for $4,500.

(a) What was the total amount of Habsburg's interest in the operation before selling?

(b) What is the total value of the salt mining operation?

Solution