Home / 7,974.60-11,957.51-3,815.66

Finding the Fourth Proportional to 7,974.60, 11,957.51 and 3,815.66

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Solution

The fourth proportional to 7,974.60, 11,957.51 and 3,815.66 is: 5,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.60 : 11,957.51 = 3,815.66 : x
  2. Step 2: Convert to fraction form
    7,974.60/11,957.51 = 3,815.66/x
  3. Step 3: Cross multiply
    7,974.60x = 11,957.51 × 3,815.66
  4. Step 4: Simplify right side
    7,974.60x = 45,625,713.74
  5. Step 5: Solve for x
    x = 45,625,713.74/7,974.60
  6. Step 6: Final answer
    x = 5,721.38

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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.