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Finding the Fourth Proportional to 8,650.44, 12,965.32 and 4,955.20

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Solution

The fourth proportional to 8,650.44, 12,965.32 and 4,955.20 is: 7,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.44 : 12,965.32 = 4,955.20 : x
  2. Step 2: Convert to fraction form
    8,650.44/12,965.32 = 4,955.20/x
  3. Step 3: Cross multiply
    8,650.44x = 12,965.32 × 4,955.20
  4. Step 4: Simplify right side
    8,650.44x = 64,245,753.66
  5. Step 5: Solve for x
    x = 64,245,753.66/8,650.44
  6. Step 6: Final answer
    x = 7,426.88

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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.