Home / 8,198.60-12,295.68-3,811.76

Finding the Fourth Proportional to 8,198.60, 12,295.68 and 3,811.76

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Solution

The fourth proportional to 8,198.60, 12,295.68 and 3,811.76 is: 5,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.60 : 12,295.68 = 3,811.76 : x
  2. Step 2: Convert to fraction form
    8,198.60/12,295.68 = 3,811.76/x
  3. Step 3: Cross multiply
    8,198.60x = 12,295.68 × 3,811.76
  4. Step 4: Simplify right side
    8,198.60x = 46,868,181.20
  5. Step 5: Solve for x
    x = 46,868,181.20/8,198.60
  6. Step 6: Final answer
    x = 5,716.61

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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.