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Finding the Fourth Proportional to 6,712.95, 9,263.74 and 3,728.75

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Solution

The fourth proportional to 6,712.95, 9,263.74 and 3,728.75 is: 5,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.95 : 9,263.74 = 3,728.75 : x
  2. Step 2: Convert to fraction form
    6,712.95/9,263.74 = 3,728.75/x
  3. Step 3: Cross multiply
    6,712.95x = 9,263.74 × 3,728.75
  4. Step 4: Simplify right side
    6,712.95x = 34,542,170.53
  5. Step 5: Solve for x
    x = 34,542,170.53/6,712.95
  6. Step 6: Final answer
    x = 5,145.61

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