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Finding the Fourth Proportional to 8,234.64, 12,346.92 and 4,340.88

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Solution

The fourth proportional to 8,234.64, 12,346.92 and 4,340.88 is: 6,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,234.64 : 12,346.92 = 4,340.88 : x
  2. Step 2: Convert to fraction form
    8,234.64/12,346.92 = 4,340.88/x
  3. Step 3: Cross multiply
    8,234.64x = 12,346.92 × 4,340.88
  4. Step 4: Simplify right side
    8,234.64x = 53,596,498.09
  5. Step 5: Solve for x
    x = 53,596,498.09/8,234.64
  6. Step 6: Final answer
    x = 6,508.66

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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.