Home / 11,986.09-17,968.20-4,190.65

Finding the Fourth Proportional to 11,986.09, 17,968.20 and 4,190.65

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Solution

The fourth proportional to 11,986.09, 17,968.20 and 4,190.65 is: 6,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.09 : 17,968.20 = 4,190.65 : x
  2. Step 2: Convert to fraction form
    11,986.09/17,968.20 = 4,190.65/x
  3. Step 3: Cross multiply
    11,986.09x = 17,968.20 × 4,190.65
  4. Step 4: Simplify right side
    11,986.09x = 75,298,437.33
  5. Step 5: Solve for x
    x = 75,298,437.33/11,986.09
  6. Step 6: Final answer
    x = 6,282.15

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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.