Home / 13,608.75-20,407.95-8,063.66

Finding the Fourth Proportional to 13,608.75, 20,407.95 and 8,063.66

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Solution

The fourth proportional to 13,608.75, 20,407.95 and 8,063.66 is: 12,092.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.75 : 20,407.95 = 8,063.66 : x
  2. Step 2: Convert to fraction form
    13,608.75/20,407.95 = 8,063.66/x
  3. Step 3: Cross multiply
    13,608.75x = 20,407.95 × 8,063.66
  4. Step 4: Simplify right side
    13,608.75x = 164,562,821.12
  5. Step 5: Solve for x
    x = 164,562,821.12/13,608.75
  6. Step 6: Final answer
    x = 12,092.42

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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.