Home / 10,156.44-15,231.78-3,999

Finding the Fourth Proportional to 10,156.44, 15,231.78 and 3,999

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Solution

The fourth proportional to 10,156.44, 15,231.78 and 3,999 is: 5,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.44 : 15,231.78 = 3,999 : x
  2. Step 2: Convert to fraction form
    10,156.44/15,231.78 = 3,999/x
  3. Step 3: Cross multiply
    10,156.44x = 15,231.78 × 3,999
  4. Step 4: Simplify right side
    10,156.44x = 60,911,888.22
  5. Step 5: Solve for x
    x = 60,911,888.22/10,156.44
  6. Step 6: Final answer
    x = 5,997.37

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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.