Home / 11,975.40-17,971.25-4,184.19

Finding the Fourth Proportional to 11,975.40, 17,971.25 and 4,184.19

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Solution

The fourth proportional to 11,975.40, 17,971.25 and 4,184.19 is: 6,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.40 : 17,971.25 = 4,184.19 : x
  2. Step 2: Convert to fraction form
    11,975.40/17,971.25 = 4,184.19/x
  3. Step 3: Cross multiply
    11,975.40x = 17,971.25 × 4,184.19
  4. Step 4: Simplify right side
    11,975.40x = 75,195,103.62
  5. Step 5: Solve for x
    x = 75,195,103.62/11,975.40
  6. Step 6: Final answer
    x = 6,279.13

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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.