Home / 18,072.24-27,109.17-7,939.95

Finding the Fourth Proportional to 18,072.24, 27,109.17 and 7,939.95

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Solution

The fourth proportional to 18,072.24, 27,109.17 and 7,939.95 is: 11,910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.24 : 27,109.17 = 7,939.95 : x
  2. Step 2: Convert to fraction form
    18,072.24/27,109.17 = 7,939.95/x
  3. Step 3: Cross multiply
    18,072.24x = 27,109.17 × 7,939.95
  4. Step 4: Simplify right side
    18,072.24x = 215,245,454.34
  5. Step 5: Solve for x
    x = 215,245,454.34/18,072.24
  6. Step 6: Final answer
    x = 11,910.28

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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.