Home / 13,664.75-20,481.71-6,982.56

Finding the Fourth Proportional to 13,664.75, 20,481.71 and 6,982.56

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Solution

The fourth proportional to 13,664.75, 20,481.71 and 6,982.56 is: 10,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.75 : 20,481.71 = 6,982.56 : x
  2. Step 2: Convert to fraction form
    13,664.75/20,481.71 = 6,982.56/x
  3. Step 3: Cross multiply
    13,664.75x = 20,481.71 × 6,982.56
  4. Step 4: Simplify right side
    13,664.75x = 143,014,734.06
  5. Step 5: Solve for x
    x = 143,014,734.06/13,664.75
  6. Step 6: Final answer
    x = 10,465.96

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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.