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Finding the Fourth Proportional to 8,153.92, 12,230.74 and 2,607.22

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Solution

The fourth proportional to 8,153.92, 12,230.74 and 2,607.22 is: 3,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.92 : 12,230.74 = 2,607.22 : x
  2. Step 2: Convert to fraction form
    8,153.92/12,230.74 = 2,607.22/x
  3. Step 3: Cross multiply
    8,153.92x = 12,230.74 × 2,607.22
  4. Step 4: Simplify right side
    8,153.92x = 31,888,229.94
  5. Step 5: Solve for x
    x = 31,888,229.94/8,153.92
  6. Step 6: Final answer
    x = 3,910.79

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Half scale
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Double scale
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Similar ratio
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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.