Home / 18,245.25-25,178.85-11,175.57

Finding the Fourth Proportional to 18,245.25, 25,178.85 and 11,175.57

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Solution

The fourth proportional to 18,245.25, 25,178.85 and 11,175.57 is: 15,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.25 : 25,178.85 = 11,175.57 : x
  2. Step 2: Convert to fraction form
    18,245.25/25,178.85 = 11,175.57/x
  3. Step 3: Cross multiply
    18,245.25x = 25,178.85 × 11,175.57
  4. Step 4: Simplify right side
    18,245.25x = 281,388,000.69
  5. Step 5: Solve for x
    x = 281,388,000.69/18,245.25
  6. Step 6: Final answer
    x = 15,422.53

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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.