Home / 11,720.91-17,581.54-3,823.39

Finding the Fourth Proportional to 11,720.91, 17,581.54 and 3,823.39

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Solution

The fourth proportional to 11,720.91, 17,581.54 and 3,823.39 is: 5,735.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.91 : 17,581.54 = 3,823.39 : x
  2. Step 2: Convert to fraction form
    11,720.91/17,581.54 = 3,823.39/x
  3. Step 3: Cross multiply
    11,720.91x = 17,581.54 × 3,823.39
  4. Step 4: Simplify right side
    11,720.91x = 67,221,084.22
  5. Step 5: Solve for x
    x = 67,221,084.22/11,720.91
  6. Step 6: Final answer
    x = 5,735.14

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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.