Home / 8,276.78-12,408.49-2,726.66

Finding the Fourth Proportional to 8,276.78, 12,408.49 and 2,726.66

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Solution

The fourth proportional to 8,276.78, 12,408.49 and 2,726.66 is: 4,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.78 : 12,408.49 = 2,726.66 : x
  2. Step 2: Convert to fraction form
    8,276.78/12,408.49 = 2,726.66/x
  3. Step 3: Cross multiply
    8,276.78x = 12,408.49 × 2,726.66
  4. Step 4: Simplify right side
    8,276.78x = 33,833,767.77
  5. Step 5: Solve for x
    x = 33,833,767.77/8,276.78
  6. Step 6: Final answer
    x = 4,087.79

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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.