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Finding the Fourth Proportional to 8,393.78, 12,590.96 and 2,550.38

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Solution

The fourth proportional to 8,393.78, 12,590.96 and 2,550.38 is: 3,825.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.78 : 12,590.96 = 2,550.38 : x
  2. Step 2: Convert to fraction form
    8,393.78/12,590.96 = 2,550.38/x
  3. Step 3: Cross multiply
    8,393.78x = 12,590.96 × 2,550.38
  4. Step 4: Simplify right side
    8,393.78x = 32,111,656.86
  5. Step 5: Solve for x
    x = 32,111,656.86/8,393.78
  6. Step 6: Final answer
    x = 3,825.65

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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.