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Finding the Fourth Proportional to 8,571.72, 12,863.31 and 3,025.08

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Solution

The fourth proportional to 8,571.72, 12,863.31 and 3,025.08 is: 4,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.72 : 12,863.31 = 3,025.08 : x
  2. Step 2: Convert to fraction form
    8,571.72/12,863.31 = 3,025.08/x
  3. Step 3: Cross multiply
    8,571.72x = 12,863.31 × 3,025.08
  4. Step 4: Simplify right side
    8,571.72x = 38,912,541.81
  5. Step 5: Solve for x
    x = 38,912,541.81/8,571.72
  6. Step 6: Final answer
    x = 4,539.64

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Why These Related Problems?

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