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Finding the Fourth Proportional to 8,647.88, 12,962.59 and 3,717.90

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Solution

The fourth proportional to 8,647.88, 12,962.59 and 3,717.90 is: 5,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.88 : 12,962.59 = 3,717.90 : x
  2. Step 2: Convert to fraction form
    8,647.88/12,962.59 = 3,717.90/x
  3. Step 3: Cross multiply
    8,647.88x = 12,962.59 × 3,717.90
  4. Step 4: Simplify right side
    8,647.88x = 48,193,606.68
  5. Step 5: Solve for x
    x = 48,193,606.68/8,647.88
  6. Step 6: Final answer
    x = 5,572.88

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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.