Home / 13,769.75-20,655.41-3,908.25

Finding the Fourth Proportional to 13,769.75, 20,655.41 and 3,908.25

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Solution

The fourth proportional to 13,769.75, 20,655.41 and 3,908.25 is: 5,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.75 : 20,655.41 = 3,908.25 : x
  2. Step 2: Convert to fraction form
    13,769.75/20,655.41 = 3,908.25/x
  3. Step 3: Cross multiply
    13,769.75x = 20,655.41 × 3,908.25
  4. Step 4: Simplify right side
    13,769.75x = 80,726,486.59
  5. Step 5: Solve for x
    x = 80,726,486.59/13,769.75
  6. Step 6: Final answer
    x = 5,862.60

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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.