Home / 11,289.68-16,930.78-3,893.96

Finding the Fourth Proportional to 11,289.68, 16,930.78 and 3,893.96

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Solution

The fourth proportional to 11,289.68, 16,930.78 and 3,893.96 is: 5,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.68 : 16,930.78 = 3,893.96 : x
  2. Step 2: Convert to fraction form
    11,289.68/16,930.78 = 3,893.96/x
  3. Step 3: Cross multiply
    11,289.68x = 16,930.78 × 3,893.96
  4. Step 4: Simplify right side
    11,289.68x = 65,927,780.09
  5. Step 5: Solve for x
    x = 65,927,780.09/11,289.68
  6. Step 6: Final answer
    x = 5,839.65

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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.