Home / 13,755.61-20,634.29-3,895.62

Finding the Fourth Proportional to 13,755.61, 20,634.29 and 3,895.62

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Solution

The fourth proportional to 13,755.61, 20,634.29 and 3,895.62 is: 5,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.61 : 20,634.29 = 3,895.62 : x
  2. Step 2: Convert to fraction form
    13,755.61/20,634.29 = 3,895.62/x
  3. Step 3: Cross multiply
    13,755.61x = 20,634.29 × 3,895.62
  4. Step 4: Simplify right side
    13,755.61x = 80,383,352.81
  5. Step 5: Solve for x
    x = 80,383,352.81/13,755.61
  6. Step 6: Final answer
    x = 5,843.68

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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.