Home / 11,172.69-16,761.80-3,381.53

Finding the Fourth Proportional to 11,172.69, 16,761.80 and 3,381.53

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Solution

The fourth proportional to 11,172.69, 16,761.80 and 3,381.53 is: 5,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.69 : 16,761.80 = 3,381.53 : x
  2. Step 2: Convert to fraction form
    11,172.69/16,761.80 = 3,381.53/x
  3. Step 3: Cross multiply
    11,172.69x = 16,761.80 × 3,381.53
  4. Step 4: Simplify right side
    11,172.69x = 56,680,454.20
  5. Step 5: Solve for x
    x = 56,680,454.20/11,172.69
  6. Step 6: Final answer
    x = 5,073.13

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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.