Home / 13,943.31-20,913.12-5,177.04

Finding the Fourth Proportional to 13,943.31, 20,913.12 and 5,177.04

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Solution

The fourth proportional to 13,943.31, 20,913.12 and 5,177.04 is: 7,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.31 : 20,913.12 = 5,177.04 : x
  2. Step 2: Convert to fraction form
    13,943.31/20,913.12 = 5,177.04/x
  3. Step 3: Cross multiply
    13,943.31x = 20,913.12 × 5,177.04
  4. Step 4: Simplify right side
    13,943.31x = 108,268,058.76
  5. Step 5: Solve for x
    x = 108,268,058.76/13,943.31
  6. Step 6: Final answer
    x = 7,764.87

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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.