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Finding the Fourth Proportional to 6,613.73, 9,902.23 and 5,290.73

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Solution

The fourth proportional to 6,613.73, 9,902.23 and 5,290.73 is: 7,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.73 : 9,902.23 = 5,290.73 : x
  2. Step 2: Convert to fraction form
    6,613.73/9,902.23 = 5,290.73/x
  3. Step 3: Cross multiply
    6,613.73x = 9,902.23 × 5,290.73
  4. Step 4: Simplify right side
    6,613.73x = 52,390,025.33
  5. Step 5: Solve for x
    x = 52,390,025.33/6,613.73
  6. Step 6: Final answer
    x = 7,921.40

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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.