Home / 7,982.19-11,973.29-2,786.85

Finding the Fourth Proportional to 7,982.19, 11,973.29 and 2,786.85

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Solution

The fourth proportional to 7,982.19, 11,973.29 and 2,786.85 is: 4,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.19 : 11,973.29 = 2,786.85 : x
  2. Step 2: Convert to fraction form
    7,982.19/11,973.29 = 2,786.85/x
  3. Step 3: Cross multiply
    7,982.19x = 11,973.29 × 2,786.85
  4. Step 4: Simplify right side
    7,982.19x = 33,367,749.30
  5. Step 5: Solve for x
    x = 33,367,749.30/7,982.19
  6. Step 6: Final answer
    x = 4,180.28

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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.