Home / 11,619.39-17,419.28-5,040.62

Finding the Fourth Proportional to 11,619.39, 17,419.28 and 5,040.62

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Solution

The fourth proportional to 11,619.39, 17,419.28 and 5,040.62 is: 7,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.39 : 17,419.28 = 5,040.62 : x
  2. Step 2: Convert to fraction form
    11,619.39/17,419.28 = 5,040.62/x
  3. Step 3: Cross multiply
    11,619.39x = 17,419.28 × 5,040.62
  4. Step 4: Simplify right side
    11,619.39x = 87,803,971.15
  5. Step 5: Solve for x
    x = 87,803,971.15/11,619.39
  6. Step 6: Final answer
    x = 7,556.68

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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.