Home / 18,704.20-25,805.35-11,993.56

Finding the Fourth Proportional to 18,704.20, 25,805.35 and 11,993.56

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Solution

The fourth proportional to 18,704.20, 25,805.35 and 11,993.56 is: 16,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.20 : 25,805.35 = 11,993.56 : x
  2. Step 2: Convert to fraction form
    18,704.20/25,805.35 = 11,993.56/x
  3. Step 3: Cross multiply
    18,704.20x = 25,805.35 × 11,993.56
  4. Step 4: Simplify right side
    18,704.20x = 309,498,013.55
  5. Step 5: Solve for x
    x = 309,498,013.55/18,704.20
  6. Step 6: Final answer
    x = 16,546.98

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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.