Home / 8,231.17-12,348.78-2,387.83

Finding the Fourth Proportional to 8,231.17, 12,348.78 and 2,387.83

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Solution

The fourth proportional to 8,231.17, 12,348.78 and 2,387.83 is: 3,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.17 : 12,348.78 = 2,387.83 : x
  2. Step 2: Convert to fraction form
    8,231.17/12,348.78 = 2,387.83/x
  3. Step 3: Cross multiply
    8,231.17x = 12,348.78 × 2,387.83
  4. Step 4: Simplify right side
    8,231.17x = 29,486,787.35
  5. Step 5: Solve for x
    x = 29,486,787.35/8,231.17
  6. Step 6: Final answer
    x = 3,582.33

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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.