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Finding the Fourth Proportional to 15,038.62, 20,753.34 and 8,324.71

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Solution

The fourth proportional to 15,038.62, 20,753.34 and 8,324.71 is: 11,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.62 : 20,753.34 = 8,324.71 : x
  2. Step 2: Convert to fraction form
    15,038.62/20,753.34 = 8,324.71/x
  3. Step 3: Cross multiply
    15,038.62x = 20,753.34 × 8,324.71
  4. Step 4: Simplify right side
    15,038.62x = 172,765,537.03
  5. Step 5: Solve for x
    x = 172,765,537.03/15,038.62
  6. Step 6: Final answer
    x = 11,488.12

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Double scale
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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.