Home / 7,942.75-11,914.13-3,325.75

Finding the Fourth Proportional to 7,942.75, 11,914.13 and 3,325.75

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Solution

The fourth proportional to 7,942.75, 11,914.13 and 3,325.75 is: 4,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.75 : 11,914.13 = 3,325.75 : x
  2. Step 2: Convert to fraction form
    7,942.75/11,914.13 = 3,325.75/x
  3. Step 3: Cross multiply
    7,942.75x = 11,914.13 × 3,325.75
  4. Step 4: Simplify right side
    7,942.75x = 39,623,417.85
  5. Step 5: Solve for x
    x = 39,623,417.85/7,942.75
  6. Step 6: Final answer
    x = 4,988.63

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Similar ratio
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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.