Home / 11,741.40-17,613.81-3,420.36

Finding the Fourth Proportional to 11,741.40, 17,613.81 and 3,420.36

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Solution

The fourth proportional to 11,741.40, 17,613.81 and 3,420.36 is: 5,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,741.40 : 17,613.81 = 3,420.36 : x
  2. Step 2: Convert to fraction form
    11,741.40/17,613.81 = 3,420.36/x
  3. Step 3: Cross multiply
    11,741.40x = 17,613.81 × 3,420.36
  4. Step 4: Simplify right side
    11,741.40x = 60,245,571.17
  5. Step 5: Solve for x
    x = 60,245,571.17/11,741.40
  6. Step 6: Final answer
    x = 5,131.04

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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.