Home / 6,912.17-10,361.11-3,211.38

Finding the Fourth Proportional to 6,912.17, 10,361.11 and 3,211.38

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Solution

The fourth proportional to 6,912.17, 10,361.11 and 3,211.38 is: 4,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.17 : 10,361.11 = 3,211.38 : x
  2. Step 2: Convert to fraction form
    6,912.17/10,361.11 = 3,211.38/x
  3. Step 3: Cross multiply
    6,912.17x = 10,361.11 × 3,211.38
  4. Step 4: Simplify right side
    6,912.17x = 33,273,461.43
  5. Step 5: Solve for x
    x = 33,273,461.43/6,912.17
  6. Step 6: Final answer
    x = 4,813.75

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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.