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Finding the Fourth Proportional to 8,145.08, 12,217.08 and 3,984.56

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Solution

The fourth proportional to 8,145.08, 12,217.08 and 3,984.56 is: 5,976.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.08 : 12,217.08 = 3,984.56 : x
  2. Step 2: Convert to fraction form
    8,145.08/12,217.08 = 3,984.56/x
  3. Step 3: Cross multiply
    8,145.08x = 12,217.08 × 3,984.56
  4. Step 4: Simplify right side
    8,145.08x = 48,679,688.28
  5. Step 5: Solve for x
    x = 48,679,688.28/8,145.08
  6. Step 6: Final answer
    x = 5,976.58

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Double scale
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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.