Home / 7,971.73-11,947.17-3,286.38

Finding the Fourth Proportional to 7,971.73, 11,947.17 and 3,286.38

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Solution

The fourth proportional to 7,971.73, 11,947.17 and 3,286.38 is: 4,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.73 : 11,947.17 = 3,286.38 : x
  2. Step 2: Convert to fraction form
    7,971.73/11,947.17 = 3,286.38/x
  3. Step 3: Cross multiply
    7,971.73x = 11,947.17 × 3,286.38
  4. Step 4: Simplify right side
    7,971.73x = 39,262,940.54
  5. Step 5: Solve for x
    x = 39,262,940.54/7,971.73
  6. Step 6: Final answer
    x = 4,925.27

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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.