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Finding the Fourth Proportional to 11,151.29, 16,721.64 and 6,472.73

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Solution

The fourth proportional to 11,151.29, 16,721.64 and 6,472.73 is: 9,706.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.29 : 16,721.64 = 6,472.73 : x
  2. Step 2: Convert to fraction form
    11,151.29/16,721.64 = 6,472.73/x
  3. Step 3: Cross multiply
    11,151.29x = 16,721.64 × 6,472.73
  4. Step 4: Simplify right side
    11,151.29x = 108,234,608.62
  5. Step 5: Solve for x
    x = 108,234,608.62/11,151.29
  6. Step 6: Final answer
    x = 9,706.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.