Home / 18,382.72-27,569.16-7,992

Finding the Fourth Proportional to 18,382.72, 27,569.16 and 7,992

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Solution

The fourth proportional to 18,382.72, 27,569.16 and 7,992 is: 11,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.72 : 27,569.16 = 7,992 : x
  2. Step 2: Convert to fraction form
    18,382.72/27,569.16 = 7,992/x
  3. Step 3: Cross multiply
    18,382.72x = 27,569.16 × 7,992
  4. Step 4: Simplify right side
    18,382.72x = 220,332,726.72
  5. Step 5: Solve for x
    x = 220,332,726.72/18,382.72
  6. Step 6: Final answer
    x = 11,985.86

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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.