Home / 8,185.82-12,279.51-3,254.36

Finding the Fourth Proportional to 8,185.82, 12,279.51 and 3,254.36

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Solution

The fourth proportional to 8,185.82, 12,279.51 and 3,254.36 is: 4,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.82 : 12,279.51 = 3,254.36 : x
  2. Step 2: Convert to fraction form
    8,185.82/12,279.51 = 3,254.36/x
  3. Step 3: Cross multiply
    8,185.82x = 12,279.51 × 3,254.36
  4. Step 4: Simplify right side
    8,185.82x = 39,961,884.77
  5. Step 5: Solve for x
    x = 39,961,884.77/8,185.82
  6. Step 6: Final answer
    x = 4,881.85

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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.