Home / 11,986.44-17,979.55-3,666.42

Finding the Fourth Proportional to 11,986.44, 17,979.55 and 3,666.42

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Solution

The fourth proportional to 11,986.44, 17,979.55 and 3,666.42 is: 5,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.44 : 17,979.55 = 3,666.42 : x
  2. Step 2: Convert to fraction form
    11,986.44/17,979.55 = 3,666.42/x
  3. Step 3: Cross multiply
    11,986.44x = 17,979.55 × 3,666.42
  4. Step 4: Simplify right side
    11,986.44x = 65,920,581.71
  5. Step 5: Solve for x
    x = 65,920,581.71/11,986.44
  6. Step 6: Final answer
    x = 5,499.60

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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.