Home / 13,662.25-20,481.01-4,895.21

Finding the Fourth Proportional to 13,662.25, 20,481.01 and 4,895.21

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Solution

The fourth proportional to 13,662.25, 20,481.01 and 4,895.21 is: 7,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.25 : 20,481.01 = 4,895.21 : x
  2. Step 2: Convert to fraction form
    13,662.25/20,481.01 = 4,895.21/x
  3. Step 3: Cross multiply
    13,662.25x = 20,481.01 × 4,895.21
  4. Step 4: Simplify right side
    13,662.25x = 100,258,844.96
  5. Step 5: Solve for x
    x = 100,258,844.96/13,662.25
  6. Step 6: Final answer
    x = 7,338.38

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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.