Home / 18,067.72-27,101.61-11,866.90

Finding the Fourth Proportional to 18,067.72, 27,101.61 and 11,866.90

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Solution

The fourth proportional to 18,067.72, 27,101.61 and 11,866.90 is: 17,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.72 : 27,101.61 = 11,866.90 : x
  2. Step 2: Convert to fraction form
    18,067.72/27,101.61 = 11,866.90/x
  3. Step 3: Cross multiply
    18,067.72x = 27,101.61 × 11,866.90
  4. Step 4: Simplify right side
    18,067.72x = 321,612,095.71
  5. Step 5: Solve for x
    x = 321,612,095.71/18,067.72
  6. Step 6: Final answer
    x = 17,800.37

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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.