Home / 13,518.27-20,250.21-6,743.43

Finding the Fourth Proportional to 13,518.27, 20,250.21 and 6,743.43

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Solution

The fourth proportional to 13,518.27, 20,250.21 and 6,743.43 is: 10,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.27 : 20,250.21 = 6,743.43 : x
  2. Step 2: Convert to fraction form
    13,518.27/20,250.21 = 6,743.43/x
  3. Step 3: Cross multiply
    13,518.27x = 20,250.21 × 6,743.43
  4. Step 4: Simplify right side
    13,518.27x = 136,555,873.62
  5. Step 5: Solve for x
    x = 136,555,873.62/13,518.27
  6. Step 6: Final answer
    x = 10,101.58

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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.