Home / 13,769.12-20,647.46-3,906.08

Finding the Fourth Proportional to 13,769.12, 20,647.46 and 3,906.08

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Solution

The fourth proportional to 13,769.12, 20,647.46 and 3,906.08 is: 5,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.12 : 20,647.46 = 3,906.08 : x
  2. Step 2: Convert to fraction form
    13,769.12/20,647.46 = 3,906.08/x
  3. Step 3: Cross multiply
    13,769.12x = 20,647.46 × 3,906.08
  4. Step 4: Simplify right side
    13,769.12x = 80,650,630.56
  5. Step 5: Solve for x
    x = 80,650,630.56/13,769.12
  6. Step 6: Final answer
    x = 5,857.36

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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.