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Finding the Fourth Proportional to 8,584.92, 12,879.95 and 3,654.99

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Solution

The fourth proportional to 8,584.92, 12,879.95 and 3,654.99 is: 5,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584.92 : 12,879.95 = 3,654.99 : x
  2. Step 2: Convert to fraction form
    8,584.92/12,879.95 = 3,654.99/x
  3. Step 3: Cross multiply
    8,584.92x = 12,879.95 × 3,654.99
  4. Step 4: Simplify right side
    8,584.92x = 47,076,070.18
  5. Step 5: Solve for x
    x = 47,076,070.18/8,584.92
  6. Step 6: Final answer
    x = 5,483.58

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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.