Home / 8,347.85-12,519.75-2,799.76

Finding the Fourth Proportional to 8,347.85, 12,519.75 and 2,799.76

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Solution

The fourth proportional to 8,347.85, 12,519.75 and 2,799.76 is: 4,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.85 : 12,519.75 = 2,799.76 : x
  2. Step 2: Convert to fraction form
    8,347.85/12,519.75 = 2,799.76/x
  3. Step 3: Cross multiply
    8,347.85x = 12,519.75 × 2,799.76
  4. Step 4: Simplify right side
    8,347.85x = 35,052,232.66
  5. Step 5: Solve for x
    x = 35,052,232.66/8,347.85
  6. Step 6: Final answer
    x = 4,198.95

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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.