Home / 13,919.04-20,863.94-6,517.28

Finding the Fourth Proportional to 13,919.04, 20,863.94 and 6,517.28

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Solution

The fourth proportional to 13,919.04, 20,863.94 and 6,517.28 is: 9,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.04 : 20,863.94 = 6,517.28 : x
  2. Step 2: Convert to fraction form
    13,919.04/20,863.94 = 6,517.28/x
  3. Step 3: Cross multiply
    13,919.04x = 20,863.94 × 6,517.28
  4. Step 4: Simplify right side
    13,919.04x = 135,976,138.88
  5. Step 5: Solve for x
    x = 135,976,138.88/13,919.04
  6. Step 6: Final answer
    x = 9,769.07

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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.