Cross Multiplying

Dylan makes punch by mixing 3 cups of cranberry juice with 2 cups of apple juice. How many total cups of punch will David make if he uses 9 cups of cranberry juice?

Maddison is throwing a party and she need 5 liters of Sprite for every 12 guests. If she has 36 guests, how many liters of Sprite does she need?

The ratio of tomatoes to red apples is 2:5. If there are 20 tomatoes, how many red apples are there?

There are four pairs of crocs for every eight pairs of sneakers in Isaiah’s closet. If Isaiah has six pairs of sneakers, how many pairs of crocs does he have?

In one group of students, three out of every six students got the correct answer to a math problem. If 5 students got the correct answer, how many total students were in the group?

In a recent survey, 11 out of every 100 scholars said that their favorite food is pizza. If 55 scholars like pizza, how many scholars took the survey?

Amiliana used 2.5 yards of fabric to make 3 decorative pillows. If she makes 12 pillows, how many yards of fabric will she need?

In a music memory contest, Triston correctly identified 18 music pieces in 20 minutes. If he worked at the same pace, how many music pieces could he identify in a 30 minute contest?

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

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Cesar made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?