Home / 10,469.85-15,705.56-3,896.09

Finding the Fourth Proportional to 10,469.85, 15,705.56 and 3,896.09

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Solution

The fourth proportional to 10,469.85, 15,705.56 and 3,896.09 is: 5,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,469.85 : 15,705.56 = 3,896.09 : x
  2. Step 2: Convert to fraction form
    10,469.85/15,705.56 = 3,896.09/x
  3. Step 3: Cross multiply
    10,469.85x = 15,705.56 × 3,896.09
  4. Step 4: Simplify right side
    10,469.85x = 61,190,265.37
  5. Step 5: Solve for x
    x = 61,190,265.37/10,469.85
  6. Step 6: Final answer
    x = 5,844.43

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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.