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Finding the Fourth Proportional to 15,044.50, 20,761.08 and 8,329.73

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Solution

The fourth proportional to 15,044.50, 20,761.08 and 8,329.73 is: 11,494.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.50 : 20,761.08 = 8,329.73 : x
  2. Step 2: Convert to fraction form
    15,044.50/20,761.08 = 8,329.73/x
  3. Step 3: Cross multiply
    15,044.50x = 20,761.08 × 8,329.73
  4. Step 4: Simplify right side
    15,044.50x = 172,934,190.91
  5. Step 5: Solve for x
    x = 172,934,190.91/15,044.50
  6. Step 6: Final answer
    x = 11,494.84

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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.