Home / 8,131.14-12,195-2,286.18

Finding the Fourth Proportional to 8,131.14, 12,195 and 2,286.18

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Solution

The fourth proportional to 8,131.14, 12,195 and 2,286.18 is: 3,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.14 : 12,195 = 2,286.18 : x
  2. Step 2: Convert to fraction form
    8,131.14/12,195 = 2,286.18/x
  3. Step 3: Cross multiply
    8,131.14x = 12,195 × 2,286.18
  4. Step 4: Simplify right side
    8,131.14x = 27,879,965.10
  5. Step 5: Solve for x
    x = 27,879,965.10/8,131.14
  6. Step 6: Final answer
    x = 3,428.79

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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.