Home / 8,199.19-12,302.80-3,517.81

Finding the Fourth Proportional to 8,199.19, 12,302.80 and 3,517.81

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Solution

The fourth proportional to 8,199.19, 12,302.80 and 3,517.81 is: 5,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.19 : 12,302.80 = 3,517.81 : x
  2. Step 2: Convert to fraction form
    8,199.19/12,302.80 = 3,517.81/x
  3. Step 3: Cross multiply
    8,199.19x = 12,302.80 × 3,517.81
  4. Step 4: Simplify right side
    8,199.19x = 43,278,895.28
  5. Step 5: Solve for x
    x = 43,278,895.28/8,199.19
  6. Step 6: Final answer
    x = 5,278.44

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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.