Home / 9,078.07-13,612.85-3,811.95

Finding the Fourth Proportional to 9,078.07, 13,612.85 and 3,811.95

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Solution

The fourth proportional to 9,078.07, 13,612.85 and 3,811.95 is: 5,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.07 : 13,612.85 = 3,811.95 : x
  2. Step 2: Convert to fraction form
    9,078.07/13,612.85 = 3,811.95/x
  3. Step 3: Cross multiply
    9,078.07x = 13,612.85 × 3,811.95
  4. Step 4: Simplify right side
    9,078.07x = 51,891,560.73
  5. Step 5: Solve for x
    x = 51,891,560.73/9,078.07
  6. Step 6: Final answer
    x = 5,716.15

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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.