Home / 18,067.32-27,100.98-11,909.88

Finding the Fourth Proportional to 18,067.32, 27,100.98 and 11,909.88

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Solution

The fourth proportional to 18,067.32, 27,100.98 and 11,909.88 is: 17,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.32 : 27,100.98 = 11,909.88 : x
  2. Step 2: Convert to fraction form
    18,067.32/27,100.98 = 11,909.88/x
  3. Step 3: Cross multiply
    18,067.32x = 27,100.98 × 11,909.88
  4. Step 4: Simplify right side
    18,067.32x = 322,769,419.68
  5. Step 5: Solve for x
    x = 322,769,419.68/18,067.32
  6. Step 6: Final answer
    x = 17,864.82

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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.