Home / 8,660.75-11,949.74-5,122.00

Finding the Fourth Proportional to 8,660.75, 11,949.74 and 5,122.00

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Solution

The fourth proportional to 8,660.75, 11,949.74 and 5,122.00 is: 7,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.75 : 11,949.74 = 5,122.00 : x
  2. Step 2: Convert to fraction form
    8,660.75/11,949.74 = 5,122.00/x
  3. Step 3: Cross multiply
    8,660.75x = 11,949.74 × 5,122.00
  4. Step 4: Simplify right side
    8,660.75x = 61,206,508.53
  5. Step 5: Solve for x
    x = 61,206,508.53/8,660.75
  6. Step 6: Final answer
    x = 7,067.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.