Home / 11,881.16-17,824.38-3,561.80

Finding the Fourth Proportional to 11,881.16, 17,824.38 and 3,561.80

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Solution

The fourth proportional to 11,881.16, 17,824.38 and 3,561.80 is: 5,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.16 : 17,824.38 = 3,561.80 : x
  2. Step 2: Convert to fraction form
    11,881.16/17,824.38 = 3,561.80/x
  3. Step 3: Cross multiply
    11,881.16x = 17,824.38 × 3,561.80
  4. Step 4: Simplify right side
    11,881.16x = 63,486,876.68
  5. Step 5: Solve for x
    x = 63,486,876.68/11,881.16
  6. Step 6: Final answer
    x = 5,343.49

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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.