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Finding the Fourth Proportional to 18,246.87, 27,370.31 and 8,394.44

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Solution

The fourth proportional to 18,246.87, 27,370.31 and 8,394.44 is: 12,591.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.87 : 27,370.31 = 8,394.44 : x
  2. Step 2: Convert to fraction form
    18,246.87/27,370.31 = 8,394.44/x
  3. Step 3: Cross multiply
    18,246.87x = 27,370.31 × 8,394.44
  4. Step 4: Simplify right side
    18,246.87x = 229,758,425.08
  5. Step 5: Solve for x
    x = 229,758,425.08/18,246.87
  6. Step 6: Final answer
    x = 12,591.66

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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.