Home / 13,326.80-19,991.08-3,839.37

Finding the Fourth Proportional to 13,326.80, 19,991.08 and 3,839.37

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Solution

The fourth proportional to 13,326.80, 19,991.08 and 3,839.37 is: 5,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.80 : 19,991.08 = 3,839.37 : x
  2. Step 2: Convert to fraction form
    13,326.80/19,991.08 = 3,839.37/x
  3. Step 3: Cross multiply
    13,326.80x = 19,991.08 × 3,839.37
  4. Step 4: Simplify right side
    13,326.80x = 76,753,240.53
  5. Step 5: Solve for x
    x = 76,753,240.53/13,326.80
  6. Step 6: Final answer
    x = 5,759.31

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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.