Home / 18,286.12-27,449.34-13,115.08

Finding the Fourth Proportional to 18,286.12, 27,449.34 and 13,115.08

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Solution

The fourth proportional to 18,286.12, 27,449.34 and 13,115.08 is: 19,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.12 : 27,449.34 = 13,115.08 : x
  2. Step 2: Convert to fraction form
    18,286.12/27,449.34 = 13,115.08/x
  3. Step 3: Cross multiply
    18,286.12x = 27,449.34 × 13,115.08
  4. Step 4: Simplify right side
    18,286.12x = 360,000,290.05
  5. Step 5: Solve for x
    x = 360,000,290.05/18,286.12
  6. Step 6: Final answer
    x = 19,687.08

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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.