Home / 7,677.73-11,517.45-2,747.80

Finding the Fourth Proportional to 7,677.73, 11,517.45 and 2,747.80

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Solution

The fourth proportional to 7,677.73, 11,517.45 and 2,747.80 is: 4,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.73 : 11,517.45 = 2,747.80 : x
  2. Step 2: Convert to fraction form
    7,677.73/11,517.45 = 2,747.80/x
  3. Step 3: Cross multiply
    7,677.73x = 11,517.45 × 2,747.80
  4. Step 4: Simplify right side
    7,677.73x = 31,647,649.11
  5. Step 5: Solve for x
    x = 31,647,649.11/7,677.73
  6. Step 6: Final answer
    x = 4,122.01

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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.