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Finding the Fourth Proportional to 8,708.22, 12,019.92 and 5,173.56

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Solution

The fourth proportional to 8,708.22, 12,019.92 and 5,173.56 is: 7,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.22 : 12,019.92 = 5,173.56 : x
  2. Step 2: Convert to fraction form
    8,708.22/12,019.92 = 5,173.56/x
  3. Step 3: Cross multiply
    8,708.22x = 12,019.92 × 5,173.56
  4. Step 4: Simplify right side
    8,708.22x = 62,185,777.32
  5. Step 5: Solve for x
    x = 62,185,777.32/8,708.22
  6. Step 6: Final answer
    x = 7,141.04

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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.