Home / 18,273.75-25,218.39-11,198.81

Finding the Fourth Proportional to 18,273.75, 25,218.39 and 11,198.81

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Solution

The fourth proportional to 18,273.75, 25,218.39 and 11,198.81 is: 15,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.75 : 25,218.39 = 11,198.81 : x
  2. Step 2: Convert to fraction form
    18,273.75/25,218.39 = 11,198.81/x
  3. Step 3: Cross multiply
    18,273.75x = 25,218.39 × 11,198.81
  4. Step 4: Simplify right side
    18,273.75x = 282,415,790.03
  5. Step 5: Solve for x
    x = 282,415,790.03/18,273.75
  6. Step 6: Final answer
    x = 15,454.73

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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.