Home / 10,424.21-15,638.09-3,850.43

Finding the Fourth Proportional to 10,424.21, 15,638.09 and 3,850.43

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Solution

The fourth proportional to 10,424.21, 15,638.09 and 3,850.43 is: 5,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.21 : 15,638.09 = 3,850.43 : x
  2. Step 2: Convert to fraction form
    10,424.21/15,638.09 = 3,850.43/x
  3. Step 3: Cross multiply
    10,424.21x = 15,638.09 × 3,850.43
  4. Step 4: Simplify right side
    10,424.21x = 60,213,273.44
  5. Step 5: Solve for x
    x = 60,213,273.44/10,424.21
  6. Step 6: Final answer
    x = 5,776.29

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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.