Home / 18,067.30-27,101.06-4,919.78

Finding the Fourth Proportional to 18,067.30, 27,101.06 and 4,919.78

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Solution

The fourth proportional to 18,067.30, 27,101.06 and 4,919.78 is: 7,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.30 : 27,101.06 = 4,919.78 : x
  2. Step 2: Convert to fraction form
    18,067.30/27,101.06 = 4,919.78/x
  3. Step 3: Cross multiply
    18,067.30x = 27,101.06 × 4,919.78
  4. Step 4: Simplify right side
    18,067.30x = 133,331,252.97
  5. Step 5: Solve for x
    x = 133,331,252.97/18,067.30
  6. Step 6: Final answer
    x = 7,379.70

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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.