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Finding the Fourth Proportional to 6,613.38, 9,920.99 and 1,933.73

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Solution

The fourth proportional to 6,613.38, 9,920.99 and 1,933.73 is: 2,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.38 : 9,920.99 = 1,933.73 : x
  2. Step 2: Convert to fraction form
    6,613.38/9,920.99 = 1,933.73/x
  3. Step 3: Cross multiply
    6,613.38x = 9,920.99 × 1,933.73
  4. Step 4: Simplify right side
    6,613.38x = 19,184,471.22
  5. Step 5: Solve for x
    x = 19,184,471.22/6,613.38
  6. Step 6: Final answer
    x = 2,900.86

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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.