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Finding the Fourth Proportional to 8,653.59, 12,976.28 and 4,489.43

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Solution

The fourth proportional to 8,653.59, 12,976.28 and 4,489.43 is: 6,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.59 : 12,976.28 = 4,489.43 : x
  2. Step 2: Convert to fraction form
    8,653.59/12,976.28 = 4,489.43/x
  3. Step 3: Cross multiply
    8,653.59x = 12,976.28 × 4,489.43
  4. Step 4: Simplify right side
    8,653.59x = 58,256,100.72
  5. Step 5: Solve for x
    x = 58,256,100.72/8,653.59
  6. Step 6: Final answer
    x = 6,732.02

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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.