Home / 7,915.24-11,871.78-2,072.26

Finding the Fourth Proportional to 7,915.24, 11,871.78 and 2,072.26

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Solution

The fourth proportional to 7,915.24, 11,871.78 and 2,072.26 is: 3,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.24 : 11,871.78 = 2,072.26 : x
  2. Step 2: Convert to fraction form
    7,915.24/11,871.78 = 2,072.26/x
  3. Step 3: Cross multiply
    7,915.24x = 11,871.78 × 2,072.26
  4. Step 4: Simplify right side
    7,915.24x = 24,601,414.82
  5. Step 5: Solve for x
    x = 24,601,414.82/7,915.24
  6. Step 6: Final answer
    x = 3,108.11

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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.