Home / 8,279.57-12,416.72-2,731.88

Finding the Fourth Proportional to 8,279.57, 12,416.72 and 2,731.88

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Solution

The fourth proportional to 8,279.57, 12,416.72 and 2,731.88 is: 4,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.57 : 12,416.72 = 2,731.88 : x
  2. Step 2: Convert to fraction form
    8,279.57/12,416.72 = 2,731.88/x
  3. Step 3: Cross multiply
    8,279.57x = 12,416.72 × 2,731.88
  4. Step 4: Simplify right side
    8,279.57x = 33,920,989.03
  5. Step 5: Solve for x
    x = 33,920,989.03/8,279.57
  6. Step 6: Final answer
    x = 4,096.95

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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.