Home / 15,324.12-21,148.19-11,540.61

Finding the Fourth Proportional to 15,324.12, 21,148.19 and 11,540.61

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Solution

The fourth proportional to 15,324.12, 21,148.19 and 11,540.61 is: 15,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.12 : 21,148.19 = 11,540.61 : x
  2. Step 2: Convert to fraction form
    15,324.12/21,148.19 = 11,540.61/x
  3. Step 3: Cross multiply
    15,324.12x = 21,148.19 × 11,540.61
  4. Step 4: Simplify right side
    15,324.12x = 244,062,998.57
  5. Step 5: Solve for x
    x = 244,062,998.57/15,324.12
  6. Step 6: Final answer
    x = 15,926.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.