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Finding the Fourth Proportional to 8,660.96, 12,979.12 and 6,704

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Solution

The fourth proportional to 8,660.96, 12,979.12 and 6,704 is: 10,046.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.96 : 12,979.12 = 6,704 : x
  2. Step 2: Convert to fraction form
    8,660.96/12,979.12 = 6,704/x
  3. Step 3: Cross multiply
    8,660.96x = 12,979.12 × 6,704
  4. Step 4: Simplify right side
    8,660.96x = 87,012,020.48
  5. Step 5: Solve for x
    x = 87,012,020.48/8,660.96
  6. Step 6: Final answer
    x = 10,046.46

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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.