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Finding the Fourth Proportional to 8,663.72, 12,997.50 and 4,766.12

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Solution

The fourth proportional to 8,663.72, 12,997.50 and 4,766.12 is: 7,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.72 : 12,997.50 = 4,766.12 : x
  2. Step 2: Convert to fraction form
    8,663.72/12,997.50 = 4,766.12/x
  3. Step 3: Cross multiply
    8,663.72x = 12,997.50 × 4,766.12
  4. Step 4: Simplify right side
    8,663.72x = 61,947,644.70
  5. Step 5: Solve for x
    x = 61,947,644.70/8,663.72
  6. Step 6: Final answer
    x = 7,150.24

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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.