Home / 11,218.76-16,828.62-4,198.12

Finding the Fourth Proportional to 11,218.76, 16,828.62 and 4,198.12

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Solution

The fourth proportional to 11,218.76, 16,828.62 and 4,198.12 is: 6,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.76 : 16,828.62 = 4,198.12 : x
  2. Step 2: Convert to fraction form
    11,218.76/16,828.62 = 4,198.12/x
  3. Step 3: Cross multiply
    11,218.76x = 16,828.62 × 4,198.12
  4. Step 4: Simplify right side
    11,218.76x = 70,648,566.19
  5. Step 5: Solve for x
    x = 70,648,566.19/11,218.76
  6. Step 6: Final answer
    x = 6,297.36

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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.