Home / 11,540.44-15,912.48-9,856.72

Finding the Fourth Proportional to 11,540.44, 15,912.48 and 9,856.72

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Solution

The fourth proportional to 11,540.44, 15,912.48 and 9,856.72 is: 13,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.44 : 15,912.48 = 9,856.72 : x
  2. Step 2: Convert to fraction form
    11,540.44/15,912.48 = 9,856.72/x
  3. Step 3: Cross multiply
    11,540.44x = 15,912.48 × 9,856.72
  4. Step 4: Simplify right side
    11,540.44x = 156,844,859.87
  5. Step 5: Solve for x
    x = 156,844,859.87/11,540.44
  6. Step 6: Final answer
    x = 13,590.89

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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.