Home / 11,947.76-17,921.64-5,366.26

Finding the Fourth Proportional to 11,947.76, 17,921.64 and 5,366.26

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Solution

The fourth proportional to 11,947.76, 17,921.64 and 5,366.26 is: 8,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.76 : 17,921.64 = 5,366.26 : x
  2. Step 2: Convert to fraction form
    11,947.76/17,921.64 = 5,366.26/x
  3. Step 3: Cross multiply
    11,947.76x = 17,921.64 × 5,366.26
  4. Step 4: Simplify right side
    11,947.76x = 96,172,179.87
  5. Step 5: Solve for x
    x = 96,172,179.87/11,947.76
  6. Step 6: Final answer
    x = 8,049.39

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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.