Home / 18,255.33-25,193.12-11,538.52

Finding the Fourth Proportional to 18,255.33, 25,193.12 and 11,538.52

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Solution

The fourth proportional to 18,255.33, 25,193.12 and 11,538.52 is: 15,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.33 : 25,193.12 = 11,538.52 : x
  2. Step 2: Convert to fraction form
    18,255.33/25,193.12 = 11,538.52/x
  3. Step 3: Cross multiply
    18,255.33x = 25,193.12 × 11,538.52
  4. Step 4: Simplify right side
    18,255.33x = 290,691,318.98
  5. Step 5: Solve for x
    x = 290,691,318.98/18,255.33
  6. Step 6: Final answer
    x = 15,923.64

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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.