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Finding the Fourth Proportional to 8,608.32, 12,917.43 and 4,863.06

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Solution

The fourth proportional to 8,608.32, 12,917.43 and 4,863.06 is: 7,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.32 : 12,917.43 = 4,863.06 : x
  2. Step 2: Convert to fraction form
    8,608.32/12,917.43 = 4,863.06/x
  3. Step 3: Cross multiply
    8,608.32x = 12,917.43 × 4,863.06
  4. Step 4: Simplify right side
    8,608.32x = 62,818,237.14
  5. Step 5: Solve for x
    x = 62,818,237.14/8,608.32
  6. Step 6: Final answer
    x = 7,297.39

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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.