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Finding the Fourth Proportional to 8,687.75, 13,033.89 and 4,003.92

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Solution

The fourth proportional to 8,687.75, 13,033.89 and 4,003.92 is: 6,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.75 : 13,033.89 = 4,003.92 : x
  2. Step 2: Convert to fraction form
    8,687.75/13,033.89 = 4,003.92/x
  3. Step 3: Cross multiply
    8,687.75x = 13,033.89 × 4,003.92
  4. Step 4: Simplify right side
    8,687.75x = 52,186,652.85
  5. Step 5: Solve for x
    x = 52,186,652.85/8,687.75
  6. Step 6: Final answer
    x = 6,006.93

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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.