Home / 8,438.86-12,657.34-3,241.09

Finding the Fourth Proportional to 8,438.86, 12,657.34 and 3,241.09

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Solution

The fourth proportional to 8,438.86, 12,657.34 and 3,241.09 is: 4,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.86 : 12,657.34 = 3,241.09 : x
  2. Step 2: Convert to fraction form
    8,438.86/12,657.34 = 3,241.09/x
  3. Step 3: Cross multiply
    8,438.86x = 12,657.34 × 3,241.09
  4. Step 4: Simplify right side
    8,438.86x = 41,023,578.10
  5. Step 5: Solve for x
    x = 41,023,578.10/8,438.86
  6. Step 6: Final answer
    x = 4,861.27

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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.