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Finding the Fourth Proportional to 8,640.26, 12,957.65 and 2,795.50

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Solution

The fourth proportional to 8,640.26, 12,957.65 and 2,795.50 is: 4,192.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.26 : 12,957.65 = 2,795.50 : x
  2. Step 2: Convert to fraction form
    8,640.26/12,957.65 = 2,795.50/x
  3. Step 3: Cross multiply
    8,640.26x = 12,957.65 × 2,795.50
  4. Step 4: Simplify right side
    8,640.26x = 36,223,110.58
  5. Step 5: Solve for x
    x = 36,223,110.58/8,640.26
  6. Step 6: Final answer
    x = 4,192.36

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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.