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Finding the Fourth Proportional to 8,340.92, 12,511.92 and 2,794.04

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Solution

The fourth proportional to 8,340.92, 12,511.92 and 2,794.04 is: 4,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.92 : 12,511.92 = 2,794.04 : x
  2. Step 2: Convert to fraction form
    8,340.92/12,511.92 = 2,794.04/x
  3. Step 3: Cross multiply
    8,340.92x = 12,511.92 × 2,794.04
  4. Step 4: Simplify right side
    8,340.92x = 34,958,804.96
  5. Step 5: Solve for x
    x = 34,958,804.96/8,340.92
  6. Step 6: Final answer
    x = 4,191.24

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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.