Home / 18,273.56-25,218.13-11,198.62

Finding the Fourth Proportional to 18,273.56, 25,218.13 and 11,198.62

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Solution

The fourth proportional to 18,273.56, 25,218.13 and 11,198.62 is: 15,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.56 : 25,218.13 = 11,198.62 : x
  2. Step 2: Convert to fraction form
    18,273.56/25,218.13 = 11,198.62/x
  3. Step 3: Cross multiply
    18,273.56x = 25,218.13 × 11,198.62
  4. Step 4: Simplify right side
    18,273.56x = 282,408,163.94
  5. Step 5: Solve for x
    x = 282,408,163.94/18,273.56
  6. Step 6: Final answer
    x = 15,454.47

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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.