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Finding the Fourth Proportional to 8,768.43, 12,096.45 and 5,180.94

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Solution

The fourth proportional to 8,768.43, 12,096.45 and 5,180.94 is: 7,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.43 : 12,096.45 = 5,180.94 : x
  2. Step 2: Convert to fraction form
    8,768.43/12,096.45 = 5,180.94/x
  3. Step 3: Cross multiply
    8,768.43x = 12,096.45 × 5,180.94
  4. Step 4: Simplify right side
    8,768.43x = 62,670,981.66
  5. Step 5: Solve for x
    x = 62,670,981.66/8,768.43
  6. Step 6: Final answer
    x = 7,147.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.