Home / 8,780.97-12,118.07-5,004.73

Finding the Fourth Proportional to 8,780.97, 12,118.07 and 5,004.73

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Solution

The fourth proportional to 8,780.97, 12,118.07 and 5,004.73 is: 6,906.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.97 : 12,118.07 = 5,004.73 : x
  2. Step 2: Convert to fraction form
    8,780.97/12,118.07 = 5,004.73/x
  3. Step 3: Cross multiply
    8,780.97x = 12,118.07 × 5,004.73
  4. Step 4: Simplify right side
    8,780.97x = 60,647,696.13
  5. Step 5: Solve for x
    x = 60,647,696.13/8,780.97
  6. Step 6: Final answer
    x = 6,906.72

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1.5x scale

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.