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Home > MC1 > Chapter 9 > Lesson 9.2.5 > Problem 9-104


Find the missing value in each of the following proportions.

For help solving proportions, refer to the Math Notes box below.

  1. We can choose cross multiplication, which is Strategy in the Math Notes box above.
    Your expression would then look something like this: Can you find the value of now?

    How many 's are in ? You can figure this out by dividing by .

  2. Here, try using a Giant One to change  to a fraction over . This will give you the value of .

  3. Which strategy do you like to use more? Both will work here, so remember to show your work!

    The value of is .