Home / 11,121.13-16,670.95-3,721.48

Finding the Fourth Proportional to 11,121.13, 16,670.95 and 3,721.48

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Solution

The fourth proportional to 11,121.13, 16,670.95 and 3,721.48 is: 5,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.13 : 16,670.95 = 3,721.48 : x
  2. Step 2: Convert to fraction form
    11,121.13/16,670.95 = 3,721.48/x
  3. Step 3: Cross multiply
    11,121.13x = 16,670.95 × 3,721.48
  4. Step 4: Simplify right side
    11,121.13x = 62,040,556.02
  5. Step 5: Solve for x
    x = 62,040,556.02/11,121.13
  6. Step 6: Final answer
    x = 5,578.62

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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.