Home / 7,964.83-11,947.25-2,418.20

Finding the Fourth Proportional to 7,964.83, 11,947.25 and 2,418.20

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Solution

The fourth proportional to 7,964.83, 11,947.25 and 2,418.20 is: 3,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.83 : 11,947.25 = 2,418.20 : x
  2. Step 2: Convert to fraction form
    7,964.83/11,947.25 = 2,418.20/x
  3. Step 3: Cross multiply
    7,964.83x = 11,947.25 × 2,418.20
  4. Step 4: Simplify right side
    7,964.83x = 28,890,884.66
  5. Step 5: Solve for x
    x = 28,890,884.66/7,964.83
  6. Step 6: Final answer
    x = 3,627.31

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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.