Home / 13,769.16-20,647.44-3,906.06

Finding the Fourth Proportional to 13,769.16, 20,647.44 and 3,906.06

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Solution

The fourth proportional to 13,769.16, 20,647.44 and 3,906.06 is: 5,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.16 : 20,647.44 = 3,906.06 : x
  2. Step 2: Convert to fraction form
    13,769.16/20,647.44 = 3,906.06/x
  3. Step 3: Cross multiply
    13,769.16x = 20,647.44 × 3,906.06
  4. Step 4: Simplify right side
    13,769.16x = 80,650,139.49
  5. Step 5: Solve for x
    x = 80,650,139.49/13,769.16
  6. Step 6: Final answer
    x = 5,857.30

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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.