Home / 7,969.45-11,955.62-3,286.90

Finding the Fourth Proportional to 7,969.45, 11,955.62 and 3,286.90

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Solution

The fourth proportional to 7,969.45, 11,955.62 and 3,286.90 is: 4,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.45 : 11,955.62 = 3,286.90 : x
  2. Step 2: Convert to fraction form
    7,969.45/11,955.62 = 3,286.90/x
  3. Step 3: Cross multiply
    7,969.45x = 11,955.62 × 3,286.90
  4. Step 4: Simplify right side
    7,969.45x = 39,296,910.94
  5. Step 5: Solve for x
    x = 39,296,910.94/7,969.45
  6. Step 6: Final answer
    x = 4,930.95

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1.5x scale

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.