Solve Proportions Sample Size Word Problems

Solve the proportion:

• 4

• 8

• 14

• 10

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5

12 ounce shampoo bottle lasts Mike 16 weeks.  How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 weeks

• 6 weeks

• 30 weeks

• 20 weeks

Hamburger meat sells for $6 for every 3 pounds. If Alicia buys 10 pounds of hamburger meat, how much will she pay?

• $30

• $20

• $60

• $10

Using proportions, solve the following real-life problem: If 4 workers can build a wall in 6 days, how many days will it take for 6 workers to build the same wall?

• 2 days

• 10 days

• 4 days

• 8 days

Emily's original painting has a width of 3 inches and a height of 4 inches. She enlarged the size of the painting so that it has a width of 15 inches. What is the new height? Which of these proportions correctly represents the situation?

Emily's original painting has a width of 3 inches and a height of 4 inches. She enlarged the size of the painting so that it has a width of 15 inches. What is the new height?

Now solve the proportion.

20 Fuji apples cost $12. How many Fuji apples can you buy for $3? Select the proportion that represents the situation correctly.

20 Fuji apples cost $12. How many Fuji apples can you buy for $3?

Solve the proportion.

• 8 apples

• 7 apples

• 5 apples

• 1 apples

If you can buy four bunches of purple grapes for $10, then how many can you buy with $25? Select the proportion that correctly represents the situation.