Home / 18,286.44-25,232.21-11,115.12

Finding the Fourth Proportional to 18,286.44, 25,232.21 and 11,115.12

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Solution

The fourth proportional to 18,286.44, 25,232.21 and 11,115.12 is: 15,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.44 : 25,232.21 = 11,115.12 : x
  2. Step 2: Convert to fraction form
    18,286.44/25,232.21 = 11,115.12/x
  3. Step 3: Cross multiply
    18,286.44x = 25,232.21 × 11,115.12
  4. Step 4: Simplify right side
    18,286.44x = 280,458,986.44
  5. Step 5: Solve for x
    x = 280,458,986.44/18,286.44
  6. Step 6: Final answer
    x = 15,336.99

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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.