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Finding the Fourth Proportional to 8,550.90, 11,799.90 and 4,773.78

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Solution

The fourth proportional to 8,550.90, 11,799.90 and 4,773.78 is: 6,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,550.90 : 11,799.90 = 4,773.78 : x
  2. Step 2: Convert to fraction form
    8,550.90/11,799.90 = 4,773.78/x
  3. Step 3: Cross multiply
    8,550.90x = 11,799.90 × 4,773.78
  4. Step 4: Simplify right side
    8,550.90x = 56,330,126.62
  5. Step 5: Solve for x
    x = 56,330,126.62/8,550.90
  6. Step 6: Final answer
    x = 6,587.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.