Home / 7,766.97-11,653.10-3,387.30

Finding the Fourth Proportional to 7,766.97, 11,653.10 and 3,387.30

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Solution

The fourth proportional to 7,766.97, 11,653.10 and 3,387.30 is: 5,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.97 : 11,653.10 = 3,387.30 : x
  2. Step 2: Convert to fraction form
    7,766.97/11,653.10 = 3,387.30/x
  3. Step 3: Cross multiply
    7,766.97x = 11,653.10 × 3,387.30
  4. Step 4: Simplify right side
    7,766.97x = 39,472,528.69
  5. Step 5: Solve for x
    x = 39,472,528.69/7,766.97
  6. Step 6: Final answer
    x = 5,082.10

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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.