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Finding the Fourth Proportional to 18,793.06, 28,154.79 and 9,422.14

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Solution

The fourth proportional to 18,793.06, 28,154.79 and 9,422.14 is: 14,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.06 : 28,154.79 = 9,422.14 : x
  2. Step 2: Convert to fraction form
    18,793.06/28,154.79 = 9,422.14/x
  3. Step 3: Cross multiply
    18,793.06x = 28,154.79 × 9,422.14
  4. Step 4: Simplify right side
    18,793.06x = 265,278,373.05
  5. Step 5: Solve for x
    x = 265,278,373.05/18,793.06
  6. Step 6: Final answer
    x = 14,115.76

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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.