Home / 18,546.10-27,819.20-5,398.78

Finding the Fourth Proportional to 18,546.10, 27,819.20 and 5,398.78

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Solution

The fourth proportional to 18,546.10, 27,819.20 and 5,398.78 is: 8,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,546.10 : 27,819.20 = 5,398.78 : x
  2. Step 2: Convert to fraction form
    18,546.10/27,819.20 = 5,398.78/x
  3. Step 3: Cross multiply
    18,546.10x = 27,819.20 × 5,398.78
  4. Step 4: Simplify right side
    18,546.10x = 150,189,740.58
  5. Step 5: Solve for x
    x = 150,189,740.58/18,546.10
  6. Step 6: Final answer
    x = 8,098.18

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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.