Home / 6,815.32-10,219.38-5,149.96

Finding the Fourth Proportional to 6,815.32, 10,219.38 and 5,149.96

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Solution

The fourth proportional to 6,815.32, 10,219.38 and 5,149.96 is: 7,722.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.32 : 10,219.38 = 5,149.96 : x
  2. Step 2: Convert to fraction form
    6,815.32/10,219.38 = 5,149.96/x
  3. Step 3: Cross multiply
    6,815.32x = 10,219.38 × 5,149.96
  4. Step 4: Simplify right side
    6,815.32x = 52,629,398.22
  5. Step 5: Solve for x
    x = 52,629,398.22/6,815.32
  6. Step 6: Final answer
    x = 7,722.22

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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.