Home / 8,249.04-11,320.56-8,190.72

Finding the Fourth Proportional to 8,249.04, 11,320.56 and 8,190.72

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Solution

The fourth proportional to 8,249.04, 11,320.56 and 8,190.72 is: 11,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.04 : 11,320.56 = 8,190.72 : x
  2. Step 2: Convert to fraction form
    8,249.04/11,320.56 = 8,190.72/x
  3. Step 3: Cross multiply
    8,249.04x = 11,320.56 × 8,190.72
  4. Step 4: Simplify right side
    8,249.04x = 92,723,537.20
  5. Step 5: Solve for x
    x = 92,723,537.20/8,249.04
  6. Step 6: Final answer
    x = 11,240.52

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Find fourth proportional to 4,124.52, 5,660.28 and 4,095.36
Half scale
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Double scale
Find fourth proportional to 8,250.04, 11,321.93 and 8,191.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.