Home / 18,729.45-25,835.27-11,170.73

Finding the Fourth Proportional to 18,729.45, 25,835.27 and 11,170.73

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Solution

The fourth proportional to 18,729.45, 25,835.27 and 11,170.73 is: 15,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.45 : 25,835.27 = 11,170.73 : x
  2. Step 2: Convert to fraction form
    18,729.45/25,835.27 = 11,170.73/x
  3. Step 3: Cross multiply
    18,729.45x = 25,835.27 × 11,170.73
  4. Step 4: Simplify right side
    18,729.45x = 288,598,640.62
  5. Step 5: Solve for x
    x = 288,598,640.62/18,729.45
  6. Step 6: Final answer
    x = 15,408.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.