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Finding the Fourth Proportional to 7,812.97, 11,713.03 and 3,650.92

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Solution

The fourth proportional to 7,812.97, 11,713.03 and 3,650.92 is: 5,473.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.97 : 11,713.03 = 3,650.92 : x
  2. Step 2: Convert to fraction form
    7,812.97/11,713.03 = 3,650.92/x
  3. Step 3: Cross multiply
    7,812.97x = 11,713.03 × 3,650.92
  4. Step 4: Simplify right side
    7,812.97x = 42,763,335.49
  5. Step 5: Solve for x
    x = 42,763,335.49/7,812.97
  6. Step 6: Final answer
    x = 5,473.38

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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.