Home / 11,211.62-16,818.21-3,314.03

Finding the Fourth Proportional to 11,211.62, 16,818.21 and 3,314.03

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Solution

The fourth proportional to 11,211.62, 16,818.21 and 3,314.03 is: 4,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.62 : 16,818.21 = 3,314.03 : x
  2. Step 2: Convert to fraction form
    11,211.62/16,818.21 = 3,314.03/x
  3. Step 3: Cross multiply
    11,211.62x = 16,818.21 × 3,314.03
  4. Step 4: Simplify right side
    11,211.62x = 55,736,052.49
  5. Step 5: Solve for x
    x = 55,736,052.49/11,211.62
  6. Step 6: Final answer
    x = 4,971.28

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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.