Home / 7,942.11-11,912.66-3,260.91

Finding the Fourth Proportional to 7,942.11, 11,912.66 and 3,260.91

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Solution

The fourth proportional to 7,942.11, 11,912.66 and 3,260.91 is: 4,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.11 : 11,912.66 = 3,260.91 : x
  2. Step 2: Convert to fraction form
    7,942.11/11,912.66 = 3,260.91/x
  3. Step 3: Cross multiply
    7,942.11x = 11,912.66 × 3,260.91
  4. Step 4: Simplify right side
    7,942.11x = 38,846,081.12
  5. Step 5: Solve for x
    x = 38,846,081.12/7,942.11
  6. Step 6: Final answer
    x = 4,891.15

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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.