Home / 11,429.72-17,144.38-3,638.44

Finding the Fourth Proportional to 11,429.72, 17,144.38 and 3,638.44

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Solution

The fourth proportional to 11,429.72, 17,144.38 and 3,638.44 is: 5,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.72 : 17,144.38 = 3,638.44 : x
  2. Step 2: Convert to fraction form
    11,429.72/17,144.38 = 3,638.44/x
  3. Step 3: Cross multiply
    11,429.72x = 17,144.38 × 3,638.44
  4. Step 4: Simplify right side
    11,429.72x = 62,378,797.97
  5. Step 5: Solve for x
    x = 62,378,797.97/11,429.72
  6. Step 6: Final answer
    x = 5,457.60

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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.