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Finding the Fourth Proportional to 8,511.52, 12,764.69 and 6,841.68

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Solution

The fourth proportional to 8,511.52, 12,764.69 and 6,841.68 is: 10,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.52 : 12,764.69 = 6,841.68 : x
  2. Step 2: Convert to fraction form
    8,511.52/12,764.69 = 6,841.68/x
  3. Step 3: Cross multiply
    8,511.52x = 12,764.69 × 6,841.68
  4. Step 4: Simplify right side
    8,511.52x = 87,331,944.94
  5. Step 5: Solve for x
    x = 87,331,944.94/8,511.52
  6. Step 6: Final answer
    x = 10,260.44

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1.5x scale

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.