Home / 11,986.62-17,980.13-4,195.41

Finding the Fourth Proportional to 11,986.62, 17,980.13 and 4,195.41

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Solution

The fourth proportional to 11,986.62, 17,980.13 and 4,195.41 is: 6,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.62 : 17,980.13 = 4,195.41 : x
  2. Step 2: Convert to fraction form
    11,986.62/17,980.13 = 4,195.41/x
  3. Step 3: Cross multiply
    11,986.62x = 17,980.13 × 4,195.41
  4. Step 4: Simplify right side
    11,986.62x = 75,434,017.20
  5. Step 5: Solve for x
    x = 75,434,017.20/11,986.62
  6. Step 6: Final answer
    x = 6,293.19

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1.5x scale

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.