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Finding the Fourth Proportional to 7,960.73, 11,922.88 and 3,803.65

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Solution

The fourth proportional to 7,960.73, 11,922.88 and 3,803.65 is: 5,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.73 : 11,922.88 = 3,803.65 : x
  2. Step 2: Convert to fraction form
    7,960.73/11,922.88 = 3,803.65/x
  3. Step 3: Cross multiply
    7,960.73x = 11,922.88 × 3,803.65
  4. Step 4: Simplify right side
    7,960.73x = 45,350,497.39
  5. Step 5: Solve for x
    x = 45,350,497.39/7,960.73
  6. Step 6: Final answer
    x = 5,696.78

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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.