Home / 6,418.29-9,613.43-3,945.62

Finding the Fourth Proportional to 6,418.29, 9,613.43 and 3,945.62

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Solution

The fourth proportional to 6,418.29, 9,613.43 and 3,945.62 is: 5,909.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.29 : 9,613.43 = 3,945.62 : x
  2. Step 2: Convert to fraction form
    6,418.29/9,613.43 = 3,945.62/x
  3. Step 3: Cross multiply
    6,418.29x = 9,613.43 × 3,945.62
  4. Step 4: Simplify right side
    6,418.29x = 37,930,873.88
  5. Step 5: Solve for x
    x = 37,930,873.88/6,418.29
  6. Step 6: Final answer
    x = 5,909.81

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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.