Home / 8,231.29-12,348.96-2,387.82

Finding the Fourth Proportional to 8,231.29, 12,348.96 and 2,387.82

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Solution

The fourth proportional to 8,231.29, 12,348.96 and 2,387.82 is: 3,582.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.29 : 12,348.96 = 2,387.82 : x
  2. Step 2: Convert to fraction form
    8,231.29/12,348.96 = 2,387.82/x
  3. Step 3: Cross multiply
    8,231.29x = 12,348.96 × 2,387.82
  4. Step 4: Simplify right side
    8,231.29x = 29,487,093.67
  5. Step 5: Solve for x
    x = 29,487,093.67/8,231.29
  6. Step 6: Final answer
    x = 3,582.32

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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.