Home / 7,839.05-11,751.37-3,393.93

Finding the Fourth Proportional to 7,839.05, 11,751.37 and 3,393.93

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Solution

The fourth proportional to 7,839.05, 11,751.37 and 3,393.93 is: 5,087.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.05 : 11,751.37 = 3,393.93 : x
  2. Step 2: Convert to fraction form
    7,839.05/11,751.37 = 3,393.93/x
  3. Step 3: Cross multiply
    7,839.05x = 11,751.37 × 3,393.93
  4. Step 4: Simplify right side
    7,839.05x = 39,883,327.18
  5. Step 5: Solve for x
    x = 39,883,327.18/7,839.05
  6. Step 6: Final answer
    x = 5,087.78

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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.