Home / 11,865.86-17,792.78-3,965.56

Finding the Fourth Proportional to 11,865.86, 17,792.78 and 3,965.56

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Solution

The fourth proportional to 11,865.86, 17,792.78 and 3,965.56 is: 5,946.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.86 : 17,792.78 = 3,965.56 : x
  2. Step 2: Convert to fraction form
    11,865.86/17,792.78 = 3,965.56/x
  3. Step 3: Cross multiply
    11,865.86x = 17,792.78 × 3,965.56
  4. Step 4: Simplify right side
    11,865.86x = 70,558,272.35
  5. Step 5: Solve for x
    x = 70,558,272.35/11,865.86
  6. Step 6: Final answer
    x = 5,946.33

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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.