Home / 7,958.38-11,936.66-2,115.46

Finding the Fourth Proportional to 7,958.38, 11,936.66 and 2,115.46

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Solution

The fourth proportional to 7,958.38, 11,936.66 and 2,115.46 is: 3,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.38 : 11,936.66 = 2,115.46 : x
  2. Step 2: Convert to fraction form
    7,958.38/11,936.66 = 2,115.46/x
  3. Step 3: Cross multiply
    7,958.38x = 11,936.66 × 2,115.46
  4. Step 4: Simplify right side
    7,958.38x = 25,251,526.76
  5. Step 5: Solve for x
    x = 25,251,526.76/7,958.38
  6. Step 6: Final answer
    x = 3,172.95

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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.