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Finding the Fourth Proportional to 8,620.53, 11,896.31 and 4,843.80

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Solution

The fourth proportional to 8,620.53, 11,896.31 and 4,843.80 is: 6,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.53 : 11,896.31 = 4,843.80 : x
  2. Step 2: Convert to fraction form
    8,620.53/11,896.31 = 4,843.80/x
  3. Step 3: Cross multiply
    8,620.53x = 11,896.31 × 4,843.80
  4. Step 4: Simplify right side
    8,620.53x = 57,623,358.49
  5. Step 5: Solve for x
    x = 57,623,358.49/8,620.53
  6. Step 6: Final answer
    x = 6,684.44

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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.