Home / 7,947.12-11,921.98-3,265.88

Finding the Fourth Proportional to 7,947.12, 11,921.98 and 3,265.88

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Solution

The fourth proportional to 7,947.12, 11,921.98 and 3,265.88 is: 4,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.12 : 11,921.98 = 3,265.88 : x
  2. Step 2: Convert to fraction form
    7,947.12/11,921.98 = 3,265.88/x
  3. Step 3: Cross multiply
    7,947.12x = 11,921.98 × 3,265.88
  4. Step 4: Simplify right side
    7,947.12x = 38,935,756.04
  5. Step 5: Solve for x
    x = 38,935,756.04/7,947.12
  6. Step 6: Final answer
    x = 4,899.35

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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.