Home / 8,781.18-13,176.97-3,238.42

Finding the Fourth Proportional to 8,781.18, 13,176.97 and 3,238.42

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Solution

The fourth proportional to 8,781.18, 13,176.97 and 3,238.42 is: 4,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.18 : 13,176.97 = 3,238.42 : x
  2. Step 2: Convert to fraction form
    8,781.18/13,176.97 = 3,238.42/x
  3. Step 3: Cross multiply
    8,781.18x = 13,176.97 × 3,238.42
  4. Step 4: Simplify right side
    8,781.18x = 42,672,522.15
  5. Step 5: Solve for x
    x = 42,672,522.15/8,781.18
  6. Step 6: Final answer
    x = 4,859.54

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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.