Home / 7,947.74-11,921.09-3,266.55

Finding the Fourth Proportional to 7,947.74, 11,921.09 and 3,266.55

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Solution

The fourth proportional to 7,947.74, 11,921.09 and 3,266.55 is: 4,899.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.74 : 11,921.09 = 3,266.55 : x
  2. Step 2: Convert to fraction form
    7,947.74/11,921.09 = 3,266.55/x
  3. Step 3: Cross multiply
    7,947.74x = 11,921.09 × 3,266.55
  4. Step 4: Simplify right side
    7,947.74x = 38,940,820.21
  5. Step 5: Solve for x
    x = 38,940,820.21/7,947.74
  6. Step 6: Final answer
    x = 4,899.61

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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.