Home / 8,279.71-12,414.77-2,731.56

Finding the Fourth Proportional to 8,279.71, 12,414.77 and 2,731.56

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Solution

The fourth proportional to 8,279.71, 12,414.77 and 2,731.56 is: 4,095.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.71 : 12,414.77 = 2,731.56 : x
  2. Step 2: Convert to fraction form
    8,279.71/12,414.77 = 2,731.56/x
  3. Step 3: Cross multiply
    8,279.71x = 12,414.77 × 2,731.56
  4. Step 4: Simplify right side
    8,279.71x = 33,911,689.14
  5. Step 5: Solve for x
    x = 33,911,689.14/8,279.71
  6. Step 6: Final answer
    x = 4,095.76

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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.