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Finding the Fourth Proportional to 18,279.20, 27,419.52 and 5,967.20

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Solution

The fourth proportional to 18,279.20, 27,419.52 and 5,967.20 is: 8,951.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.20 : 27,419.52 = 5,967.20 : x
  2. Step 2: Convert to fraction form
    18,279.20/27,419.52 = 5,967.20/x
  3. Step 3: Cross multiply
    18,279.20x = 27,419.52 × 5,967.20
  4. Step 4: Simplify right side
    18,279.20x = 163,617,759.74
  5. Step 5: Solve for x
    x = 163,617,759.74/18,279.20
  6. Step 6: Final answer
    x = 8,951.04

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1.5x scale

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.