Home / 11,856.26-17,782.97-3,091.86

Finding the Fourth Proportional to 11,856.26, 17,782.97 and 3,091.86

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Solution

The fourth proportional to 11,856.26, 17,782.97 and 3,091.86 is: 4,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.26 : 17,782.97 = 3,091.86 : x
  2. Step 2: Convert to fraction form
    11,856.26/17,782.97 = 3,091.86/x
  3. Step 3: Cross multiply
    11,856.26x = 17,782.97 × 3,091.86
  4. Step 4: Simplify right side
    11,856.26x = 54,982,438.16
  5. Step 5: Solve for x
    x = 54,982,438.16/11,856.26
  6. Step 6: Final answer
    x = 4,637.42

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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.