Home / 11,327.43-16,988.67-3,429.66

Finding the Fourth Proportional to 11,327.43, 16,988.67 and 3,429.66

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Solution

The fourth proportional to 11,327.43, 16,988.67 and 3,429.66 is: 5,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.43 : 16,988.67 = 3,429.66 : x
  2. Step 2: Convert to fraction form
    11,327.43/16,988.67 = 3,429.66/x
  3. Step 3: Cross multiply
    11,327.43x = 16,988.67 × 3,429.66
  4. Step 4: Simplify right side
    11,327.43x = 58,265,361.95
  5. Step 5: Solve for x
    x = 58,265,361.95/11,327.43
  6. Step 6: Final answer
    x = 5,143.74

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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.