Home / 11,311.79-16,970.21-3,414.44

Finding the Fourth Proportional to 11,311.79, 16,970.21 and 3,414.44

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Solution

The fourth proportional to 11,311.79, 16,970.21 and 3,414.44 is: 5,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.79 : 16,970.21 = 3,414.44 : x
  2. Step 2: Convert to fraction form
    11,311.79/16,970.21 = 3,414.44/x
  3. Step 3: Cross multiply
    11,311.79x = 16,970.21 × 3,414.44
  4. Step 4: Simplify right side
    11,311.79x = 57,943,772.37
  5. Step 5: Solve for x
    x = 57,943,772.37/11,311.79
  6. Step 6: Final answer
    x = 5,122.42

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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.