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Finding the Fourth Proportional to 8,644.83, 12,945.30 and 4,940.60

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Solution

The fourth proportional to 8,644.83, 12,945.30 and 4,940.60 is: 7,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.83 : 12,945.30 = 4,940.60 : x
  2. Step 2: Convert to fraction form
    8,644.83/12,945.30 = 4,940.60/x
  3. Step 3: Cross multiply
    8,644.83x = 12,945.30 × 4,940.60
  4. Step 4: Simplify right side
    8,644.83x = 63,957,566.53
  5. Step 5: Solve for x
    x = 63,957,566.53/8,644.83
  6. Step 6: Final answer
    x = 7,398.36

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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.