Home / 15,132.25-20,882.19-8,417.73

Finding the Fourth Proportional to 15,132.25, 20,882.19 and 8,417.73

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Solution

The fourth proportional to 15,132.25, 20,882.19 and 8,417.73 is: 11,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.25 : 20,882.19 = 8,417.73 : x
  2. Step 2: Convert to fraction form
    15,132.25/20,882.19 = 8,417.73/x
  3. Step 3: Cross multiply
    15,132.25x = 20,882.19 × 8,417.73
  4. Step 4: Simplify right side
    15,132.25x = 175,780,747.10
  5. Step 5: Solve for x
    x = 175,780,747.10/15,132.25
  6. Step 6: Final answer
    x = 11,616.30

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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.