Home / 15,540.74-23,311.13-11,863.85

Finding the Fourth Proportional to 15,540.74, 23,311.13 and 11,863.85

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Solution

The fourth proportional to 15,540.74, 23,311.13 and 11,863.85 is: 17,795.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.74 : 23,311.13 = 11,863.85 : x
  2. Step 2: Convert to fraction form
    15,540.74/23,311.13 = 11,863.85/x
  3. Step 3: Cross multiply
    15,540.74x = 23,311.13 × 11,863.85
  4. Step 4: Simplify right side
    15,540.74x = 276,559,573.78
  5. Step 5: Solve for x
    x = 276,559,573.78/15,540.74
  6. Step 6: Final answer
    x = 17,795.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.