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Finding the Fourth Proportional to 18,446.20, 27,669.30 and 6,134.20

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Solution

The fourth proportional to 18,446.20, 27,669.30 and 6,134.20 is: 9,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.20 : 27,669.30 = 6,134.20 : x
  2. Step 2: Convert to fraction form
    18,446.20/27,669.30 = 6,134.20/x
  3. Step 3: Cross multiply
    18,446.20x = 27,669.30 × 6,134.20
  4. Step 4: Simplify right side
    18,446.20x = 169,729,020.06
  5. Step 5: Solve for x
    x = 169,729,020.06/18,446.20
  6. Step 6: Final answer
    x = 9,201.30

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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.