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Finding the Fourth Proportional to 8,664.93, 12,998.99 and 2,743.30

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Solution

The fourth proportional to 8,664.93, 12,998.99 and 2,743.30 is: 4,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.93 : 12,998.99 = 2,743.30 : x
  2. Step 2: Convert to fraction form
    8,664.93/12,998.99 = 2,743.30/x
  3. Step 3: Cross multiply
    8,664.93x = 12,998.99 × 2,743.30
  4. Step 4: Simplify right side
    8,664.93x = 35,660,129.27
  5. Step 5: Solve for x
    x = 35,660,129.27/8,664.93
  6. Step 6: Final answer
    x = 4,115.45

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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.