Home / 7,947.84-11,917.12-2,399.52

Finding the Fourth Proportional to 7,947.84, 11,917.12 and 2,399.52

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Solution

The fourth proportional to 7,947.84, 11,917.12 and 2,399.52 is: 3,597.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.84 : 11,917.12 = 2,399.52 : x
  2. Step 2: Convert to fraction form
    7,947.84/11,917.12 = 2,399.52/x
  3. Step 3: Cross multiply
    7,947.84x = 11,917.12 × 2,399.52
  4. Step 4: Simplify right side
    7,947.84x = 28,595,367.78
  5. Step 5: Solve for x
    x = 28,595,367.78/7,947.84
  6. Step 6: Final answer
    x = 3,597.88

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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.