Home / 15,279.62-22,921.71-5,418.08

Finding the Fourth Proportional to 15,279.62, 22,921.71 and 5,418.08

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Solution

The fourth proportional to 15,279.62, 22,921.71 and 5,418.08 is: 8,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.62 : 22,921.71 = 5,418.08 : x
  2. Step 2: Convert to fraction form
    15,279.62/22,921.71 = 5,418.08/x
  3. Step 3: Cross multiply
    15,279.62x = 22,921.71 × 5,418.08
  4. Step 4: Simplify right side
    15,279.62x = 124,191,543.91
  5. Step 5: Solve for x
    x = 124,191,543.91/15,279.62
  6. Step 6: Final answer
    x = 8,127.92

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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.