Home / 11,138.72-16,709.76-3,741.39

Finding the Fourth Proportional to 11,138.72, 16,709.76 and 3,741.39

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Solution

The fourth proportional to 11,138.72, 16,709.76 and 3,741.39 is: 5,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.72 : 16,709.76 = 3,741.39 : x
  2. Step 2: Convert to fraction form
    11,138.72/16,709.76 = 3,741.39/x
  3. Step 3: Cross multiply
    11,138.72x = 16,709.76 × 3,741.39
  4. Step 4: Simplify right side
    11,138.72x = 62,517,728.97
  5. Step 5: Solve for x
    x = 62,517,728.97/11,138.72
  6. Step 6: Final answer
    x = 5,612.65

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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.