Home / 18,324.28-27,479.79-7,795

Finding the Fourth Proportional to 18,324.28, 27,479.79 and 7,795

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Solution

The fourth proportional to 18,324.28, 27,479.79 and 7,795 is: 11,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.28 : 27,479.79 = 7,795 : x
  2. Step 2: Convert to fraction form
    18,324.28/27,479.79 = 7,795/x
  3. Step 3: Cross multiply
    18,324.28x = 27,479.79 × 7,795
  4. Step 4: Simplify right side
    18,324.28x = 214,204,963.05
  5. Step 5: Solve for x
    x = 214,204,963.05/18,324.28
  6. Step 6: Final answer
    x = 11,689.68

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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.