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Finding the Fourth Proportional to 8,313.92, 11,472.34 and 5,126.74

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Solution

The fourth proportional to 8,313.92, 11,472.34 and 5,126.74 is: 7,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.92 : 11,472.34 = 5,126.74 : x
  2. Step 2: Convert to fraction form
    8,313.92/11,472.34 = 5,126.74/x
  3. Step 3: Cross multiply
    8,313.92x = 11,472.34 × 5,126.74
  4. Step 4: Simplify right side
    8,313.92x = 58,815,704.37
  5. Step 5: Solve for x
    x = 58,815,704.37/8,313.92
  6. Step 6: Final answer
    x = 7,074.36

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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.