Home / 7,921.22-11,876.36-3,476.75

Finding the Fourth Proportional to 7,921.22, 11,876.36 and 3,476.75

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Solution

The fourth proportional to 7,921.22, 11,876.36 and 3,476.75 is: 5,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.22 : 11,876.36 = 3,476.75 : x
  2. Step 2: Convert to fraction form
    7,921.22/11,876.36 = 3,476.75/x
  3. Step 3: Cross multiply
    7,921.22x = 11,876.36 × 3,476.75
  4. Step 4: Simplify right side
    7,921.22x = 41,291,057.86
  5. Step 5: Solve for x
    x = 41,291,057.86/7,921.22
  6. Step 6: Final answer
    x = 5,212.72

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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.