Home / 8,712.72-13,076.46-3,786.30

Finding the Fourth Proportional to 8,712.72, 13,076.46 and 3,786.30

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Solution

The fourth proportional to 8,712.72, 13,076.46 and 3,786.30 is: 5,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.72 : 13,076.46 = 3,786.30 : x
  2. Step 2: Convert to fraction form
    8,712.72/13,076.46 = 3,786.30/x
  3. Step 3: Cross multiply
    8,712.72x = 13,076.46 × 3,786.30
  4. Step 4: Simplify right side
    8,712.72x = 49,511,400.50
  5. Step 5: Solve for x
    x = 49,511,400.50/8,712.72
  6. Step 6: Final answer
    x = 5,682.66

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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.