Home / 7,964.28-11,947.93-2,627.78

Finding the Fourth Proportional to 7,964.28, 11,947.93 and 2,627.78

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Solution

The fourth proportional to 7,964.28, 11,947.93 and 2,627.78 is: 3,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.28 : 11,947.93 = 2,627.78 : x
  2. Step 2: Convert to fraction form
    7,964.28/11,947.93 = 2,627.78/x
  3. Step 3: Cross multiply
    7,964.28x = 11,947.93 × 2,627.78
  4. Step 4: Simplify right side
    7,964.28x = 31,396,458.62
  5. Step 5: Solve for x
    x = 31,396,458.62/7,964.28
  6. Step 6: Final answer
    x = 3,942.16

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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.