Home / 11,156.88-16,735.31-4,231.38

Finding the Fourth Proportional to 11,156.88, 16,735.31 and 4,231.38

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Solution

The fourth proportional to 11,156.88, 16,735.31 and 4,231.38 is: 6,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.88 : 16,735.31 = 4,231.38 : x
  2. Step 2: Convert to fraction form
    11,156.88/16,735.31 = 4,231.38/x
  3. Step 3: Cross multiply
    11,156.88x = 16,735.31 × 4,231.38
  4. Step 4: Simplify right side
    11,156.88x = 70,813,456.03
  5. Step 5: Solve for x
    x = 70,813,456.03/11,156.88
  6. Step 6: Final answer
    x = 6,347.07

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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.