Home / 8,112.80-12,161.64-3,733.76

Finding the Fourth Proportional to 8,112.80, 12,161.64 and 3,733.76

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Solution

The fourth proportional to 8,112.80, 12,161.64 and 3,733.76 is: 5,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.80 : 12,161.64 = 3,733.76 : x
  2. Step 2: Convert to fraction form
    8,112.80/12,161.64 = 3,733.76/x
  3. Step 3: Cross multiply
    8,112.80x = 12,161.64 × 3,733.76
  4. Step 4: Simplify right side
    8,112.80x = 45,408,644.97
  5. Step 5: Solve for x
    x = 45,408,644.97/8,112.80
  6. Step 6: Final answer
    x = 5,597.16

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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.