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Finding the Fourth Proportional to 11,992.97, 17,990.54 and 3,227.69

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Solution

The fourth proportional to 11,992.97, 17,990.54 and 3,227.69 is: 4,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.97 : 17,990.54 = 3,227.69 : x
  2. Step 2: Convert to fraction form
    11,992.97/17,990.54 = 3,227.69/x
  3. Step 3: Cross multiply
    11,992.97x = 17,990.54 × 3,227.69
  4. Step 4: Simplify right side
    11,992.97x = 58,067,886.05
  5. Step 5: Solve for x
    x = 58,067,886.05/11,992.97
  6. Step 6: Final answer
    x = 4,841.83

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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.