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Finding the Fourth Proportional to 8,991.60, 12,404.52 and 6,192.24

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Solution

The fourth proportional to 8,991.60, 12,404.52 and 6,192.24 is: 8,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.60 : 12,404.52 = 6,192.24 : x
  2. Step 2: Convert to fraction form
    8,991.60/12,404.52 = 6,192.24/x
  3. Step 3: Cross multiply
    8,991.60x = 12,404.52 × 6,192.24
  4. Step 4: Simplify right side
    8,991.60x = 76,811,764.92
  5. Step 5: Solve for x
    x = 76,811,764.92/8,991.60
  6. Step 6: Final answer
    x = 8,542.61

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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.