Home / 18,067.20-27,109.32-6,385.92

Finding the Fourth Proportional to 18,067.20, 27,109.32 and 6,385.92

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Solution

The fourth proportional to 18,067.20, 27,109.32 and 6,385.92 is: 9,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.20 : 27,109.32 = 6,385.92 : x
  2. Step 2: Convert to fraction form
    18,067.20/27,109.32 = 6,385.92/x
  3. Step 3: Cross multiply
    18,067.20x = 27,109.32 × 6,385.92
  4. Step 4: Simplify right side
    18,067.20x = 173,117,948.77
  5. Step 5: Solve for x
    x = 173,117,948.77/18,067.20
  6. Step 6: Final answer
    x = 9,581.89

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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.