Home / 13,859.01-20,791.25-3,998.41

Finding the Fourth Proportional to 13,859.01, 20,791.25 and 3,998.41

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Solution

The fourth proportional to 13,859.01, 20,791.25 and 3,998.41 is: 5,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.01 : 20,791.25 = 3,998.41 : x
  2. Step 2: Convert to fraction form
    13,859.01/20,791.25 = 3,998.41/x
  3. Step 3: Cross multiply
    13,859.01x = 20,791.25 × 3,998.41
  4. Step 4: Simplify right side
    13,859.01x = 83,131,951.91
  5. Step 5: Solve for x
    x = 83,131,951.91/13,859.01
  6. Step 6: Final answer
    x = 5,998.40

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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.