Home / 13,840.06-20,759.97-3,979.30

Finding the Fourth Proportional to 13,840.06, 20,759.97 and 3,979.30

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Solution

The fourth proportional to 13,840.06, 20,759.97 and 3,979.30 is: 5,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.06 : 20,759.97 = 3,979.30 : x
  2. Step 2: Convert to fraction form
    13,840.06/20,759.97 = 3,979.30/x
  3. Step 3: Cross multiply
    13,840.06x = 20,759.97 × 3,979.30
  4. Step 4: Simplify right side
    13,840.06x = 82,610,148.62
  5. Step 5: Solve for x
    x = 82,610,148.62/13,840.06
  6. Step 6: Final answer
    x = 5,968.92

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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.