Home / 13,769.64-20,655.24-3,908.14

Finding the Fourth Proportional to 13,769.64, 20,655.24 and 3,908.14

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Solution

The fourth proportional to 13,769.64, 20,655.24 and 3,908.14 is: 5,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.64 : 20,655.24 = 3,908.14 : x
  2. Step 2: Convert to fraction form
    13,769.64/20,655.24 = 3,908.14/x
  3. Step 3: Cross multiply
    13,769.64x = 20,655.24 × 3,908.14
  4. Step 4: Simplify right side
    13,769.64x = 80,723,569.65
  5. Step 5: Solve for x
    x = 80,723,569.65/13,769.64
  6. Step 6: Final answer
    x = 5,862.43

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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.