Home / 11,979.41-17,969.18-4,182.75

Finding the Fourth Proportional to 11,979.41, 17,969.18 and 4,182.75

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Solution

The fourth proportional to 11,979.41, 17,969.18 and 4,182.75 is: 6,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.41 : 17,969.18 = 4,182.75 : x
  2. Step 2: Convert to fraction form
    11,979.41/17,969.18 = 4,182.75/x
  3. Step 3: Cross multiply
    11,979.41x = 17,969.18 × 4,182.75
  4. Step 4: Simplify right side
    11,979.41x = 75,160,566.73
  5. Step 5: Solve for x
    x = 75,160,566.73/11,979.41
  6. Step 6: Final answer
    x = 6,274.15

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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.