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Finding the Fourth Proportional to 8,602.60, 12,892.56 and 6,651.04

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Solution

The fourth proportional to 8,602.60, 12,892.56 and 6,651.04 is: 9,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.60 : 12,892.56 = 6,651.04 : x
  2. Step 2: Convert to fraction form
    8,602.60/12,892.56 = 6,651.04/x
  3. Step 3: Cross multiply
    8,602.60x = 12,892.56 × 6,651.04
  4. Step 4: Simplify right side
    8,602.60x = 85,748,932.26
  5. Step 5: Solve for x
    x = 85,748,932.26/8,602.60
  6. Step 6: Final answer
    x = 9,967.79

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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.