Home / 13,763.74-20,638.62-5,863.20

Finding the Fourth Proportional to 13,763.74, 20,638.62 and 5,863.20

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Solution

The fourth proportional to 13,763.74, 20,638.62 and 5,863.20 is: 8,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.74 : 20,638.62 = 5,863.20 : x
  2. Step 2: Convert to fraction form
    13,763.74/20,638.62 = 5,863.20/x
  3. Step 3: Cross multiply
    13,763.74x = 20,638.62 × 5,863.20
  4. Step 4: Simplify right side
    13,763.74x = 121,008,356.78
  5. Step 5: Solve for x
    x = 121,008,356.78/13,763.74
  6. Step 6: Final answer
    x = 8,791.82

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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.