Home / 13,329.72-18,397.26-7,743.96

Finding the Fourth Proportional to 13,329.72, 18,397.26 and 7,743.96

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Solution

The fourth proportional to 13,329.72, 18,397.26 and 7,743.96 is: 10,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.72 : 18,397.26 = 7,743.96 : x
  2. Step 2: Convert to fraction form
    13,329.72/18,397.26 = 7,743.96/x
  3. Step 3: Cross multiply
    13,329.72x = 18,397.26 × 7,743.96
  4. Step 4: Simplify right side
    13,329.72x = 142,467,645.55
  5. Step 5: Solve for x
    x = 142,467,645.55/13,329.72
  6. Step 6: Final answer
    x = 10,687.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.