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Finding the Fourth Proportional to 8,375.56, 12,563.34 and 3,181.42

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Solution

The fourth proportional to 8,375.56, 12,563.34 and 3,181.42 is: 4,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.56 : 12,563.34 = 3,181.42 : x
  2. Step 2: Convert to fraction form
    8,375.56/12,563.34 = 3,181.42/x
  3. Step 3: Cross multiply
    8,375.56x = 12,563.34 × 3,181.42
  4. Step 4: Simplify right side
    8,375.56x = 39,969,261.14
  5. Step 5: Solve for x
    x = 39,969,261.14/8,375.56
  6. Step 6: Final answer
    x = 4,772.13

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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.