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Finding the Fourth Proportional to 18,211.70, 27,310.92 and 6,362.15

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Solution

The fourth proportional to 18,211.70, 27,310.92 and 6,362.15 is: 9,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.70 : 27,310.92 = 6,362.15 : x
  2. Step 2: Convert to fraction form
    18,211.70/27,310.92 = 6,362.15/x
  3. Step 3: Cross multiply
    18,211.70x = 27,310.92 × 6,362.15
  4. Step 4: Simplify right side
    18,211.70x = 173,756,033.12
  5. Step 5: Solve for x
    x = 173,756,033.12/18,211.70
  6. Step 6: Final answer
    x = 9,540.90

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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.