Home / 15,470.92-21,349.24-8,397.19

Finding the Fourth Proportional to 15,470.92, 21,349.24 and 8,397.19

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Solution

The fourth proportional to 15,470.92, 21,349.24 and 8,397.19 is: 11,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.92 : 21,349.24 = 8,397.19 : x
  2. Step 2: Convert to fraction form
    15,470.92/21,349.24 = 8,397.19/x
  3. Step 3: Cross multiply
    15,470.92x = 21,349.24 × 8,397.19
  4. Step 4: Simplify right side
    15,470.92x = 179,273,624.64
  5. Step 5: Solve for x
    x = 179,273,624.64/15,470.92
  6. Step 6: Final answer
    x = 11,587.78

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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.