Home / 11,121.92-16,668.48-4,540.58

Finding the Fourth Proportional to 11,121.92, 16,668.48 and 4,540.58

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Solution

The fourth proportional to 11,121.92, 16,668.48 and 4,540.58 is: 6,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.92 : 16,668.48 = 4,540.58 : x
  2. Step 2: Convert to fraction form
    11,121.92/16,668.48 = 4,540.58/x
  3. Step 3: Cross multiply
    11,121.92x = 16,668.48 × 4,540.58
  4. Step 4: Simplify right side
    11,121.92x = 75,684,566.92
  5. Step 5: Solve for x
    x = 75,684,566.92/11,121.92
  6. Step 6: Final answer
    x = 6,804.99

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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.