Home / 18,843.36-25,998.50-12,132.87

Finding the Fourth Proportional to 18,843.36, 25,998.50 and 12,132.87

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Solution

The fourth proportional to 18,843.36, 25,998.50 and 12,132.87 is: 16,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.36 : 25,998.50 = 12,132.87 : x
  2. Step 2: Convert to fraction form
    18,843.36/25,998.50 = 12,132.87/x
  3. Step 3: Cross multiply
    18,843.36x = 25,998.50 × 12,132.87
  4. Step 4: Simplify right side
    18,843.36x = 315,436,360.03
  5. Step 5: Solve for x
    x = 315,436,360.03/18,843.36
  6. Step 6: Final answer
    x = 16,739.92

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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.