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Finding the Fourth Proportional to 8,102.63, 12,153.94 and 2,630.63

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Solution

The fourth proportional to 8,102.63, 12,153.94 and 2,630.63 is: 3,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.63 : 12,153.94 = 2,630.63 : x
  2. Step 2: Convert to fraction form
    8,102.63/12,153.94 = 2,630.63/x
  3. Step 3: Cross multiply
    8,102.63x = 12,153.94 × 2,630.63
  4. Step 4: Simplify right side
    8,102.63x = 31,972,451.84
  5. Step 5: Solve for x
    x = 31,972,451.84/8,102.63
  6. Step 6: Final answer
    x = 3,945.94

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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.