Home / 13,949.16-20,917.72-5,177.64

Finding the Fourth Proportional to 13,949.16, 20,917.72 and 5,177.64

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Solution

The fourth proportional to 13,949.16, 20,917.72 and 5,177.64 is: 7,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.16 : 20,917.72 = 5,177.64 : x
  2. Step 2: Convert to fraction form
    13,949.16/20,917.72 = 5,177.64/x
  3. Step 3: Cross multiply
    13,949.16x = 20,917.72 × 5,177.64
  4. Step 4: Simplify right side
    13,949.16x = 108,304,423.78
  5. Step 5: Solve for x
    x = 108,304,423.78/13,949.16
  6. Step 6: Final answer
    x = 7,764.23

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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.