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Finding the Fourth Proportional to 8,483.87, 12,727.65 and 2,640.95

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Solution

The fourth proportional to 8,483.87, 12,727.65 and 2,640.95 is: 3,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.87 : 12,727.65 = 2,640.95 : x
  2. Step 2: Convert to fraction form
    8,483.87/12,727.65 = 2,640.95/x
  3. Step 3: Cross multiply
    8,483.87x = 12,727.65 × 2,640.95
  4. Step 4: Simplify right side
    8,483.87x = 33,613,087.27
  5. Step 5: Solve for x
    x = 33,613,087.27/8,483.87
  6. Step 6: Final answer
    x = 3,962.00

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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.