Home / 11,138.85-16,707.67-3,742.54

Finding the Fourth Proportional to 11,138.85, 16,707.67 and 3,742.54

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Solution

The fourth proportional to 11,138.85, 16,707.67 and 3,742.54 is: 5,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.85 : 16,707.67 = 3,742.54 : x
  2. Step 2: Convert to fraction form
    11,138.85/16,707.67 = 3,742.54/x
  3. Step 3: Cross multiply
    11,138.85x = 16,707.67 × 3,742.54
  4. Step 4: Simplify right side
    11,138.85x = 62,529,072.16
  5. Step 5: Solve for x
    x = 62,529,072.16/11,138.85
  6. Step 6: Final answer
    x = 5,613.60

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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.