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Finding the Fourth Proportional to 17,996.92, 26,995.11 and 8,129.30

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Solution

The fourth proportional to 17,996.92, 26,995.11 and 8,129.30 is: 12,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,996.92 : 26,995.11 = 8,129.30 : x
  2. Step 2: Convert to fraction form
    17,996.92/26,995.11 = 8,129.30/x
  3. Step 3: Cross multiply
    17,996.92x = 26,995.11 × 8,129.30
  4. Step 4: Simplify right side
    17,996.92x = 219,451,182.26
  5. Step 5: Solve for x
    x = 219,451,182.26/17,996.92
  6. Step 6: Final answer
    x = 12,193.82

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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.