Home / 18,929.30-26,121.17-11,371.14

Finding the Fourth Proportional to 18,929.30, 26,121.17 and 11,371.14

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Solution

The fourth proportional to 18,929.30, 26,121.17 and 11,371.14 is: 15,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.30 : 26,121.17 = 11,371.14 : x
  2. Step 2: Convert to fraction form
    18,929.30/26,121.17 = 11,371.14/x
  3. Step 3: Cross multiply
    18,929.30x = 26,121.17 × 11,371.14
  4. Step 4: Simplify right side
    18,929.30x = 297,027,424.18
  5. Step 5: Solve for x
    x = 297,027,424.18/18,929.30
  6. Step 6: Final answer
    x = 15,691.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.