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Finding the Fourth Proportional to 11,751.87, 17,627.86 and 3,960.75

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Solution

The fourth proportional to 11,751.87, 17,627.86 and 3,960.75 is: 5,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.87 : 17,627.86 = 3,960.75 : x
  2. Step 2: Convert to fraction form
    11,751.87/17,627.86 = 3,960.75/x
  3. Step 3: Cross multiply
    11,751.87x = 17,627.86 × 3,960.75
  4. Step 4: Simplify right side
    11,751.87x = 69,819,458.36
  5. Step 5: Solve for x
    x = 69,819,458.36/11,751.87
  6. Step 6: Final answer
    x = 5,941.14

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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.