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Finding the Fourth Proportional to 6,363.35, 9,540.40 and 4,278.17

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Solution

The fourth proportional to 6,363.35, 9,540.40 and 4,278.17 is: 6,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.35 : 9,540.40 = 4,278.17 : x
  2. Step 2: Convert to fraction form
    6,363.35/9,540.40 = 4,278.17/x
  3. Step 3: Cross multiply
    6,363.35x = 9,540.40 × 4,278.17
  4. Step 4: Simplify right side
    6,363.35x = 40,815,474.25
  5. Step 5: Solve for x
    x = 40,815,474.25/6,363.35
  6. Step 6: Final answer
    x = 6,414.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.