Home / 6,811.83-10,208.17-5,418.99

Finding the Fourth Proportional to 6,811.83, 10,208.17 and 5,418.99

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Solution

The fourth proportional to 6,811.83, 10,208.17 and 5,418.99 is: 8,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.83 : 10,208.17 = 5,418.99 : x
  2. Step 2: Convert to fraction form
    6,811.83/10,208.17 = 5,418.99/x
  3. Step 3: Cross multiply
    6,811.83x = 10,208.17 × 5,418.99
  4. Step 4: Simplify right side
    6,811.83x = 55,317,971.15
  5. Step 5: Solve for x
    x = 55,317,971.15/6,811.83
  6. Step 6: Final answer
    x = 8,120.87

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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.