Home / 8,682.36-11,982.20-5,144.80

Finding the Fourth Proportional to 8,682.36, 11,982.20 and 5,144.80

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Solution

The fourth proportional to 8,682.36, 11,982.20 and 5,144.80 is: 7,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.36 : 11,982.20 = 5,144.80 : x
  2. Step 2: Convert to fraction form
    8,682.36/11,982.20 = 5,144.80/x
  3. Step 3: Cross multiply
    8,682.36x = 11,982.20 × 5,144.80
  4. Step 4: Simplify right side
    8,682.36x = 61,646,022.56
  5. Step 5: Solve for x
    x = 61,646,022.56/8,682.36
  6. Step 6: Final answer
    x = 7,100.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.