Home / 13,876.75-20,805.39-5,110.54

Finding the Fourth Proportional to 13,876.75, 20,805.39 and 5,110.54

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Solution

The fourth proportional to 13,876.75, 20,805.39 and 5,110.54 is: 7,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.75 : 20,805.39 = 5,110.54 : x
  2. Step 2: Convert to fraction form
    13,876.75/20,805.39 = 5,110.54/x
  3. Step 3: Cross multiply
    13,876.75x = 20,805.39 × 5,110.54
  4. Step 4: Simplify right side
    13,876.75x = 106,326,706.63
  5. Step 5: Solve for x
    x = 106,326,706.63/13,876.75
  6. Step 6: Final answer
    x = 7,662.22

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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.