Home / 8,132.08-11,220.39-6,120.42

Finding the Fourth Proportional to 8,132.08, 11,220.39 and 6,120.42

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Solution

The fourth proportional to 8,132.08, 11,220.39 and 6,120.42 is: 8,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.08 : 11,220.39 = 6,120.42 : x
  2. Step 2: Convert to fraction form
    8,132.08/11,220.39 = 6,120.42/x
  3. Step 3: Cross multiply
    8,132.08x = 11,220.39 × 6,120.42
  4. Step 4: Simplify right side
    8,132.08x = 68,673,499.36
  5. Step 5: Solve for x
    x = 68,673,499.36/8,132.08
  6. Step 6: Final answer
    x = 8,444.76

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Half scale
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Double scale
Find fourth proportional to 8,133.08, 11,221.77 and 6,121.42
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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.