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Finding the Fourth Proportional to 8,620.82, 11,896.73 and 4,894.82

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Solution

The fourth proportional to 8,620.82, 11,896.73 and 4,894.82 is: 6,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.82 : 11,896.73 = 4,894.82 : x
  2. Step 2: Convert to fraction form
    8,620.82/11,896.73 = 4,894.82/x
  3. Step 3: Cross multiply
    8,620.82x = 11,896.73 × 4,894.82
  4. Step 4: Simplify right side
    8,620.82x = 58,232,351.94
  5. Step 5: Solve for x
    x = 58,232,351.94/8,620.82
  6. Step 6: Final answer
    x = 6,754.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.