Home / 8,080.32-11,157.30-5,249.10

Finding the Fourth Proportional to 8,080.32, 11,157.30 and 5,249.10

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Solution

The fourth proportional to 8,080.32, 11,157.30 and 5,249.10 is: 7,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.32 : 11,157.30 = 5,249.10 : x
  2. Step 2: Convert to fraction form
    8,080.32/11,157.30 = 5,249.10/x
  3. Step 3: Cross multiply
    8,080.32x = 11,157.30 × 5,249.10
  4. Step 4: Simplify right side
    8,080.32x = 58,565,783.43
  5. Step 5: Solve for x
    x = 58,565,783.43/8,080.32
  6. Step 6: Final answer
    x = 7,247.95

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Half scale
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Double scale
Find fourth proportional to 8,081.32, 11,158.68 and 5,250.10
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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.