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Finding the Fourth Proportional to 8,056.91, 12,080.12 and 3,379.92

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Solution

The fourth proportional to 8,056.91, 12,080.12 and 3,379.92 is: 5,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,056.91 : 12,080.12 = 3,379.92 : x
  2. Step 2: Convert to fraction form
    8,056.91/12,080.12 = 3,379.92/x
  3. Step 3: Cross multiply
    8,056.91x = 12,080.12 × 3,379.92
  4. Step 4: Simplify right side
    8,056.91x = 40,829,778.79
  5. Step 5: Solve for x
    x = 40,829,778.79/8,056.91
  6. Step 6: Final answer
    x = 5,067.68

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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.