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Finding the Fourth Proportional to 11,375.16, 17,055 and 3,975.54

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Solution

The fourth proportional to 11,375.16, 17,055 and 3,975.54 is: 5,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.16 : 17,055 = 3,975.54 : x
  2. Step 2: Convert to fraction form
    11,375.16/17,055 = 3,975.54/x
  3. Step 3: Cross multiply
    11,375.16x = 17,055 × 3,975.54
  4. Step 4: Simplify right side
    11,375.16x = 67,802,834.70
  5. Step 5: Solve for x
    x = 67,802,834.70/11,375.16
  6. Step 6: Final answer
    x = 5,960.60

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1.5x scale

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.