Home / 7,839.38-11,763.70-2,912.46

Finding the Fourth Proportional to 7,839.38, 11,763.70 and 2,912.46

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Solution

The fourth proportional to 7,839.38, 11,763.70 and 2,912.46 is: 4,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.38 : 11,763.70 = 2,912.46 : x
  2. Step 2: Convert to fraction form
    7,839.38/11,763.70 = 2,912.46/x
  3. Step 3: Cross multiply
    7,839.38x = 11,763.70 × 2,912.46
  4. Step 4: Simplify right side
    7,839.38x = 34,261,305.70
  5. Step 5: Solve for x
    x = 34,261,305.70/7,839.38
  6. Step 6: Final answer
    x = 4,370.41

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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.