Home / 11,147.75-16,721.99-4,129.53

Finding the Fourth Proportional to 11,147.75, 16,721.99 and 4,129.53

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Solution

The fourth proportional to 11,147.75, 16,721.99 and 4,129.53 is: 6,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.75 : 16,721.99 = 4,129.53 : x
  2. Step 2: Convert to fraction form
    11,147.75/16,721.99 = 4,129.53/x
  3. Step 3: Cross multiply
    11,147.75x = 16,721.99 × 4,129.53
  4. Step 4: Simplify right side
    11,147.75x = 69,053,938.72
  5. Step 5: Solve for x
    x = 69,053,938.72/11,147.75
  6. Step 6: Final answer
    x = 6,194.43

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1.5x scale

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.