Home / 18,131.67-25,012.26-11,404.62

Finding the Fourth Proportional to 18,131.67, 25,012.26 and 11,404.62

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Solution

The fourth proportional to 18,131.67, 25,012.26 and 11,404.62 is: 15,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.67 : 25,012.26 = 11,404.62 : x
  2. Step 2: Convert to fraction form
    18,131.67/25,012.26 = 11,404.62/x
  3. Step 3: Cross multiply
    18,131.67x = 25,012.26 × 11,404.62
  4. Step 4: Simplify right side
    18,131.67x = 285,255,320.64
  5. Step 5: Solve for x
    x = 285,255,320.64/18,131.67
  6. Step 6: Final answer
    x = 15,732.44

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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.