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Finding the Fourth Proportional to 13,952.92, 20,876.92 and 8,309.88

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Solution

The fourth proportional to 13,952.92, 20,876.92 and 8,309.88 is: 12,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.92 : 20,876.92 = 8,309.88 : x
  2. Step 2: Convert to fraction form
    13,952.92/20,876.92 = 8,309.88/x
  3. Step 3: Cross multiply
    13,952.92x = 20,876.92 × 8,309.88
  4. Step 4: Simplify right side
    13,952.92x = 173,484,699.97
  5. Step 5: Solve for x
    x = 173,484,699.97/13,952.92
  6. Step 6: Final answer
    x = 12,433.58

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1.5x scale

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.