Home / 13,821.14-20,725.62-3,958.18

Finding the Fourth Proportional to 13,821.14, 20,725.62 and 3,958.18

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Solution

The fourth proportional to 13,821.14, 20,725.62 and 3,958.18 is: 5,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.14 : 20,725.62 = 3,958.18 : x
  2. Step 2: Convert to fraction form
    13,821.14/20,725.62 = 3,958.18/x
  3. Step 3: Cross multiply
    13,821.14x = 20,725.62 × 3,958.18
  4. Step 4: Simplify right side
    13,821.14x = 82,035,734.57
  5. Step 5: Solve for x
    x = 82,035,734.57/13,821.14
  6. Step 6: Final answer
    x = 5,935.53

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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.