Home / 18,231.38-27,344.58-7,145.82

Finding the Fourth Proportional to 18,231.38, 27,344.58 and 7,145.82

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Solution

The fourth proportional to 18,231.38, 27,344.58 and 7,145.82 is: 10,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.38 : 27,344.58 = 7,145.82 : x
  2. Step 2: Convert to fraction form
    18,231.38/27,344.58 = 7,145.82/x
  3. Step 3: Cross multiply
    18,231.38x = 27,344.58 × 7,145.82
  4. Step 4: Simplify right side
    18,231.38x = 195,399,309.93
  5. Step 5: Solve for x
    x = 195,399,309.93/18,231.38
  6. Step 6: Final answer
    x = 10,717.75

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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.