Home / 13,517.50-20,279.49-4,283.50

Finding the Fourth Proportional to 13,517.50, 20,279.49 and 4,283.50

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Solution

The fourth proportional to 13,517.50, 20,279.49 and 4,283.50 is: 6,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.50 : 20,279.49 = 4,283.50 : x
  2. Step 2: Convert to fraction form
    13,517.50/20,279.49 = 4,283.50/x
  3. Step 3: Cross multiply
    13,517.50x = 20,279.49 × 4,283.50
  4. Step 4: Simplify right side
    13,517.50x = 86,867,195.42
  5. Step 5: Solve for x
    x = 86,867,195.42/13,517.50
  6. Step 6: Final answer
    x = 6,426.28

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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.