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Finding the Fourth Proportional to 6,716.30, 10,074.45 and 5,485.10

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Solution

The fourth proportional to 6,716.30, 10,074.45 and 5,485.10 is: 8,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,716.30 : 10,074.45 = 5,485.10 : x
  2. Step 2: Convert to fraction form
    6,716.30/10,074.45 = 5,485.10/x
  3. Step 3: Cross multiply
    6,716.30x = 10,074.45 × 5,485.10
  4. Step 4: Simplify right side
    6,716.30x = 55,259,365.70
  5. Step 5: Solve for x
    x = 55,259,365.70/6,716.30
  6. Step 6: Final answer
    x = 8,227.65

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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.