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Finding the Fourth Proportional to 8,753.88, 13,131 and 2,910.54

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Solution

The fourth proportional to 8,753.88, 13,131 and 2,910.54 is: 4,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.88 : 13,131 = 2,910.54 : x
  2. Step 2: Convert to fraction form
    8,753.88/13,131 = 2,910.54/x
  3. Step 3: Cross multiply
    8,753.88x = 13,131 × 2,910.54
  4. Step 4: Simplify right side
    8,753.88x = 38,218,300.74
  5. Step 5: Solve for x
    x = 38,218,300.74/8,753.88
  6. Step 6: Final answer
    x = 4,365.87

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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.