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Finding the Fourth Proportional to 8,452.46, 12,679.43 and 2,212.44

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Solution

The fourth proportional to 8,452.46, 12,679.43 and 2,212.44 is: 3,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.46 : 12,679.43 = 2,212.44 : x
  2. Step 2: Convert to fraction form
    8,452.46/12,679.43 = 2,212.44/x
  3. Step 3: Cross multiply
    8,452.46x = 12,679.43 × 2,212.44
  4. Step 4: Simplify right side
    8,452.46x = 28,052,467.05
  5. Step 5: Solve for x
    x = 28,052,467.05/8,452.46
  6. Step 6: Final answer
    x = 3,318.85

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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.