Home / 13,982.84-20,974.16-5,662.73

Finding the Fourth Proportional to 13,982.84, 20,974.16 and 5,662.73

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Solution

The fourth proportional to 13,982.84, 20,974.16 and 5,662.73 is: 8,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.84 : 20,974.16 = 5,662.73 : x
  2. Step 2: Convert to fraction form
    13,982.84/20,974.16 = 5,662.73/x
  3. Step 3: Cross multiply
    13,982.84x = 20,974.16 × 5,662.73
  4. Step 4: Simplify right side
    13,982.84x = 118,770,871.87
  5. Step 5: Solve for x
    x = 118,770,871.87/13,982.84
  6. Step 6: Final answer
    x = 8,494.05

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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.