Home / 11,147.52-16,721.76-3,751.68

Finding the Fourth Proportional to 11,147.52, 16,721.76 and 3,751.68

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Solution

The fourth proportional to 11,147.52, 16,721.76 and 3,751.68 is: 5,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.52 : 16,721.76 = 3,751.68 : x
  2. Step 2: Convert to fraction form
    11,147.52/16,721.76 = 3,751.68/x
  3. Step 3: Cross multiply
    11,147.52x = 16,721.76 × 3,751.68
  4. Step 4: Simplify right side
    11,147.52x = 62,734,692.56
  5. Step 5: Solve for x
    x = 62,734,692.56/11,147.52
  6. Step 6: Final answer
    x = 5,627.68

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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.