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Finding the Fourth Proportional to 8,443.68, 12,668 and 2,601.16

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Solution

The fourth proportional to 8,443.68, 12,668 and 2,601.16 is: 3,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.68 : 12,668 = 2,601.16 : x
  2. Step 2: Convert to fraction form
    8,443.68/12,668 = 2,601.16/x
  3. Step 3: Cross multiply
    8,443.68x = 12,668 × 2,601.16
  4. Step 4: Simplify right side
    8,443.68x = 32,951,494.88
  5. Step 5: Solve for x
    x = 32,951,494.88/8,443.68
  6. Step 6: Final answer
    x = 3,902.50

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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.