Home / 18,251.24-27,408.11-11,272.55

Finding the Fourth Proportional to 18,251.24, 27,408.11 and 11,272.55

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Solution

The fourth proportional to 18,251.24, 27,408.11 and 11,272.55 is: 16,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.24 : 27,408.11 = 11,272.55 : x
  2. Step 2: Convert to fraction form
    18,251.24/27,408.11 = 11,272.55/x
  3. Step 3: Cross multiply
    18,251.24x = 27,408.11 × 11,272.55
  4. Step 4: Simplify right side
    18,251.24x = 308,959,096.98
  5. Step 5: Solve for x
    x = 308,959,096.98/18,251.24
  6. Step 6: Final answer
    x = 16,928.12

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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.