Home / 13,841.13-20,765.25-3,981.18

Finding the Fourth Proportional to 13,841.13, 20,765.25 and 3,981.18

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Solution

The fourth proportional to 13,841.13, 20,765.25 and 3,981.18 is: 5,972.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.13 : 20,765.25 = 3,981.18 : x
  2. Step 2: Convert to fraction form
    13,841.13/20,765.25 = 3,981.18/x
  3. Step 3: Cross multiply
    13,841.13x = 20,765.25 × 3,981.18
  4. Step 4: Simplify right side
    13,841.13x = 82,670,198.00
  5. Step 5: Solve for x
    x = 82,670,198.00/13,841.13
  6. Step 6: Final answer
    x = 5,972.79

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1.5x scale

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.