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Finding the Fourth Proportional to 8,766.77, 12,098.16 and 5,229.90

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Solution

The fourth proportional to 8,766.77, 12,098.16 and 5,229.90 is: 7,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.77 : 12,098.16 = 5,229.90 : x
  2. Step 2: Convert to fraction form
    8,766.77/12,098.16 = 5,229.90/x
  3. Step 3: Cross multiply
    8,766.77x = 12,098.16 × 5,229.90
  4. Step 4: Simplify right side
    8,766.77x = 63,272,166.98
  5. Step 5: Solve for x
    x = 63,272,166.98/8,766.77
  6. Step 6: Final answer
    x = 7,217.28

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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.