Home / 18,242.82-25,175.41-11,072.90

Finding the Fourth Proportional to 18,242.82, 25,175.41 and 11,072.90

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Solution

The fourth proportional to 18,242.82, 25,175.41 and 11,072.90 is: 15,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.82 : 25,175.41 = 11,072.90 : x
  2. Step 2: Convert to fraction form
    18,242.82/25,175.41 = 11,072.90/x
  3. Step 3: Cross multiply
    18,242.82x = 25,175.41 × 11,072.90
  4. Step 4: Simplify right side
    18,242.82x = 278,764,832.65
  5. Step 5: Solve for x
    x = 278,764,832.65/18,242.82
  6. Step 6: Final answer
    x = 15,280.80

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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.