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Finding the Fourth Proportional to 8,168.85, 12,244.50 and 3,231.63

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Solution

The fourth proportional to 8,168.85, 12,244.50 and 3,231.63 is: 4,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.85 : 12,244.50 = 3,231.63 : x
  2. Step 2: Convert to fraction form
    8,168.85/12,244.50 = 3,231.63/x
  3. Step 3: Cross multiply
    8,168.85x = 12,244.50 × 3,231.63
  4. Step 4: Simplify right side
    8,168.85x = 39,569,693.54
  5. Step 5: Solve for x
    x = 39,569,693.54/8,168.85
  6. Step 6: Final answer
    x = 4,843.97

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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.