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Finding the Fourth Proportional to 8,473.76, 11,693.78 and 5,161.76

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Solution

The fourth proportional to 8,473.76, 11,693.78 and 5,161.76 is: 7,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.76 : 11,693.78 = 5,161.76 : x
  2. Step 2: Convert to fraction form
    8,473.76/11,693.78 = 5,161.76/x
  3. Step 3: Cross multiply
    8,473.76x = 11,693.78 × 5,161.76
  4. Step 4: Simplify right side
    8,473.76x = 60,360,485.85
  5. Step 5: Solve for x
    x = 60,360,485.85/8,473.76
  6. Step 6: Final answer
    x = 7,123.22

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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.