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Finding the Fourth Proportional to 18,306.52, 27,443.34 and 8,440.76

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Solution

The fourth proportional to 18,306.52, 27,443.34 and 8,440.76 is: 12,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.52 : 27,443.34 = 8,440.76 : x
  2. Step 2: Convert to fraction form
    18,306.52/27,443.34 = 8,440.76/x
  3. Step 3: Cross multiply
    18,306.52x = 27,443.34 × 8,440.76
  4. Step 4: Simplify right side
    18,306.52x = 231,642,646.54
  5. Step 5: Solve for x
    x = 231,642,646.54/18,306.52
  6. Step 6: Final answer
    x = 12,653.56

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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.