Home / 8,691.08-13,037.99-3,143.85

Finding the Fourth Proportional to 8,691.08, 13,037.99 and 3,143.85

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Solution

The fourth proportional to 8,691.08, 13,037.99 and 3,143.85 is: 4,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.08 : 13,037.99 = 3,143.85 : x
  2. Step 2: Convert to fraction form
    8,691.08/13,037.99 = 3,143.85/x
  3. Step 3: Cross multiply
    8,691.08x = 13,037.99 × 3,143.85
  4. Step 4: Simplify right side
    8,691.08x = 40,989,469.14
  5. Step 5: Solve for x
    x = 40,989,469.14/8,691.08
  6. Step 6: Final answer
    x = 4,716.27

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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.