Home / 13,791.61-20,687.46-3,796.49

Finding the Fourth Proportional to 13,791.61, 20,687.46 and 3,796.49

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Solution

The fourth proportional to 13,791.61, 20,687.46 and 3,796.49 is: 5,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.61 : 20,687.46 = 3,796.49 : x
  2. Step 2: Convert to fraction form
    13,791.61/20,687.46 = 3,796.49/x
  3. Step 3: Cross multiply
    13,791.61x = 20,687.46 × 3,796.49
  4. Step 4: Simplify right side
    13,791.61x = 78,539,735.02
  5. Step 5: Solve for x
    x = 78,539,735.02/13,791.61
  6. Step 6: Final answer
    x = 5,694.75

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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.