Home / 13,456.26-20,180.75-5,663.25

Finding the Fourth Proportional to 13,456.26, 20,180.75 and 5,663.25

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Solution

The fourth proportional to 13,456.26, 20,180.75 and 5,663.25 is: 8,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.26 : 20,180.75 = 5,663.25 : x
  2. Step 2: Convert to fraction form
    13,456.26/20,180.75 = 5,663.25/x
  3. Step 3: Cross multiply
    13,456.26x = 20,180.75 × 5,663.25
  4. Step 4: Simplify right side
    13,456.26x = 114,288,604.12
  5. Step 5: Solve for x
    x = 114,288,604.12/13,456.26
  6. Step 6: Final answer
    x = 8,493.34

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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.