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Finding the Fourth Proportional to 7,012, 9,676.62 and 3,868.27

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Solution

The fourth proportional to 7,012, 9,676.62 and 3,868.27 is: 5,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012 : 9,676.62 = 3,868.27 : x
  2. Step 2: Convert to fraction form
    7,012/9,676.62 = 3,868.27/x
  3. Step 3: Cross multiply
    7,012x = 9,676.62 × 3,868.27
  4. Step 4: Simplify right side
    7,012x = 37,431,778.85
  5. Step 5: Solve for x
    x = 37,431,778.85/7,012
  6. Step 6: Final answer
    x = 5,338.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.