Home / 15,397.73-21,248.90-8,324.15

Finding the Fourth Proportional to 15,397.73, 21,248.90 and 8,324.15

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Solution

The fourth proportional to 15,397.73, 21,248.90 and 8,324.15 is: 11,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.73 : 21,248.90 = 8,324.15 : x
  2. Step 2: Convert to fraction form
    15,397.73/21,248.90 = 8,324.15/x
  3. Step 3: Cross multiply
    15,397.73x = 21,248.90 × 8,324.15
  4. Step 4: Simplify right side
    15,397.73x = 176,878,989.31
  5. Step 5: Solve for x
    x = 176,878,989.31/15,397.73
  6. Step 6: Final answer
    x = 11,487.34

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Similar ratio
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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.