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Finding the Fourth Proportional to 8,047.78, 12,071.67 and 3,887.62

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Solution

The fourth proportional to 8,047.78, 12,071.67 and 3,887.62 is: 5,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.78 : 12,071.67 = 3,887.62 : x
  2. Step 2: Convert to fraction form
    8,047.78/12,071.67 = 3,887.62/x
  3. Step 3: Cross multiply
    8,047.78x = 12,071.67 × 3,887.62
  4. Step 4: Simplify right side
    8,047.78x = 46,930,065.73
  5. Step 5: Solve for x
    x = 46,930,065.73/8,047.78
  6. Step 6: Final answer
    x = 5,831.43

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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.