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Finding the Fourth Proportional to 8,652.82, 12,979.23 and 4,952.47

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Solution

The fourth proportional to 8,652.82, 12,979.23 and 4,952.47 is: 7,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.82 : 12,979.23 = 4,952.47 : x
  2. Step 2: Convert to fraction form
    8,652.82/12,979.23 = 4,952.47/x
  3. Step 3: Cross multiply
    8,652.82x = 12,979.23 × 4,952.47
  4. Step 4: Simplify right side
    8,652.82x = 64,279,247.20
  5. Step 5: Solve for x
    x = 64,279,247.20/8,652.82
  6. Step 6: Final answer
    x = 7,428.71

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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.