Home / 15,603.48-21,531.54-9,229.68

Finding the Fourth Proportional to 15,603.48, 21,531.54 and 9,229.68

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Solution

The fourth proportional to 15,603.48, 21,531.54 and 9,229.68 is: 12,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.48 : 21,531.54 = 9,229.68 : x
  2. Step 2: Convert to fraction form
    15,603.48/21,531.54 = 9,229.68/x
  3. Step 3: Cross multiply
    15,603.48x = 21,531.54 × 9,229.68
  4. Step 4: Simplify right side
    15,603.48x = 198,729,224.11
  5. Step 5: Solve for x
    x = 198,729,224.11/15,603.48
  6. Step 6: Final answer
    x = 12,736.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.