Home / 6,811.28-10,207.32-5,418.44

Finding the Fourth Proportional to 6,811.28, 10,207.32 and 5,418.44

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Solution

The fourth proportional to 6,811.28, 10,207.32 and 5,418.44 is: 8,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.28 : 10,207.32 = 5,418.44 : x
  2. Step 2: Convert to fraction form
    6,811.28/10,207.32 = 5,418.44/x
  3. Step 3: Cross multiply
    6,811.28x = 10,207.32 × 5,418.44
  4. Step 4: Simplify right side
    6,811.28x = 55,307,750.98
  5. Step 5: Solve for x
    x = 55,307,750.98/6,811.28
  6. Step 6: Final answer
    x = 8,120.02

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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.