Home / 18,843.24-25,998.34-12,132.75

Finding the Fourth Proportional to 18,843.24, 25,998.34 and 12,132.75

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Solution

The fourth proportional to 18,843.24, 25,998.34 and 12,132.75 is: 16,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.24 : 25,998.34 = 12,132.75 : x
  2. Step 2: Convert to fraction form
    18,843.24/25,998.34 = 12,132.75/x
  3. Step 3: Cross multiply
    18,843.24x = 25,998.34 × 12,132.75
  4. Step 4: Simplify right side
    18,843.24x = 315,431,359.64
  5. Step 5: Solve for x
    x = 315,431,359.64/18,843.24
  6. Step 6: Final answer
    x = 16,739.76

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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.