Home / 18,974.82-28,463.62-7,288.04

Finding the Fourth Proportional to 18,974.82, 28,463.62 and 7,288.04

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Solution

The fourth proportional to 18,974.82, 28,463.62 and 7,288.04 is: 10,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.82 : 28,463.62 = 7,288.04 : x
  2. Step 2: Convert to fraction form
    18,974.82/28,463.62 = 7,288.04/x
  3. Step 3: Cross multiply
    18,974.82x = 28,463.62 × 7,288.04
  4. Step 4: Simplify right side
    18,974.82x = 207,444,001.10
  5. Step 5: Solve for x
    x = 207,444,001.10/18,974.82
  6. Step 6: Final answer
    x = 10,932.59

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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.