Home / 18,351.11-25,324.53-9,967.61

Finding the Fourth Proportional to 18,351.11, 25,324.53 and 9,967.61

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Solution

The fourth proportional to 18,351.11, 25,324.53 and 9,967.61 is: 13,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.11 : 25,324.53 = 9,967.61 : x
  2. Step 2: Convert to fraction form
    18,351.11/25,324.53 = 9,967.61/x
  3. Step 3: Cross multiply
    18,351.11x = 25,324.53 × 9,967.61
  4. Step 4: Simplify right side
    18,351.11x = 252,424,911.85
  5. Step 5: Solve for x
    x = 252,424,911.85/18,351.11
  6. Step 6: Final answer
    x = 13,755.30

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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.