Home / 7,982.85-11,959.68-5,786.13

Finding the Fourth Proportional to 7,982.85, 11,959.68 and 5,786.13

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Solution

The fourth proportional to 7,982.85, 11,959.68 and 5,786.13 is: 8,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.85 : 11,959.68 = 5,786.13 : x
  2. Step 2: Convert to fraction form
    7,982.85/11,959.68 = 5,786.13/x
  3. Step 3: Cross multiply
    7,982.85x = 11,959.68 × 5,786.13
  4. Step 4: Simplify right side
    7,982.85x = 69,200,263.24
  5. Step 5: Solve for x
    x = 69,200,263.24/7,982.85
  6. Step 6: Final answer
    x = 8,668.62

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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.