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Finding the Fourth Proportional to 8,058, 12,078.36 and 3,376.83

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Solution

The fourth proportional to 8,058, 12,078.36 and 3,376.83 is: 5,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,058 : 12,078.36 = 3,376.83 : x
  2. Step 2: Convert to fraction form
    8,058/12,078.36 = 3,376.83/x
  3. Step 3: Cross multiply
    8,058x = 12,078.36 × 3,376.83
  4. Step 4: Simplify right side
    8,058x = 40,786,568.40
  5. Step 5: Solve for x
    x = 40,786,568.40/8,058
  6. Step 6: Final answer
    x = 5,061.62

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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.