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Finding the Fourth Proportional to 8,437.26, 12,659.25 and 3,241.74

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Solution

The fourth proportional to 8,437.26, 12,659.25 and 3,241.74 is: 4,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.26 : 12,659.25 = 3,241.74 : x
  2. Step 2: Convert to fraction form
    8,437.26/12,659.25 = 3,241.74/x
  3. Step 3: Cross multiply
    8,437.26x = 12,659.25 × 3,241.74
  4. Step 4: Simplify right side
    8,437.26x = 41,037,997.10
  5. Step 5: Solve for x
    x = 41,037,997.10/8,437.26
  6. Step 6: Final answer
    x = 4,863.90

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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.