Home / 12,286.06-18,414.51-7,081.18

Finding the Fourth Proportional to 12,286.06, 18,414.51 and 7,081.18

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Solution

The fourth proportional to 12,286.06, 18,414.51 and 7,081.18 is: 10,613.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.06 : 18,414.51 = 7,081.18 : x
  2. Step 2: Convert to fraction form
    12,286.06/18,414.51 = 7,081.18/x
  3. Step 3: Cross multiply
    12,286.06x = 18,414.51 × 7,081.18
  4. Step 4: Simplify right side
    12,286.06x = 130,396,459.92
  5. Step 5: Solve for x
    x = 130,396,459.92/12,286.06
  6. Step 6: Final answer
    x = 10,613.37

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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.