Home / 6,918.38-10,377.47-3,218.54

Finding the Fourth Proportional to 6,918.38, 10,377.47 and 3,218.54

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Solution

The fourth proportional to 6,918.38, 10,377.47 and 3,218.54 is: 4,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.38 : 10,377.47 = 3,218.54 : x
  2. Step 2: Convert to fraction form
    6,918.38/10,377.47 = 3,218.54/x
  3. Step 3: Cross multiply
    6,918.38x = 10,377.47 × 3,218.54
  4. Step 4: Simplify right side
    6,918.38x = 33,400,234.31
  5. Step 5: Solve for x
    x = 33,400,234.31/6,918.38
  6. Step 6: Final answer
    x = 4,827.76

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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.