Home / 11,081.57-16,622.35-5,238.77

Finding the Fourth Proportional to 11,081.57, 16,622.35 and 5,238.77

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Solution

The fourth proportional to 11,081.57, 16,622.35 and 5,238.77 is: 7,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.57 : 16,622.35 = 5,238.77 : x
  2. Step 2: Convert to fraction form
    11,081.57/16,622.35 = 5,238.77/x
  3. Step 3: Cross multiply
    11,081.57x = 16,622.35 × 5,238.77
  4. Step 4: Simplify right side
    11,081.57x = 87,080,572.30
  5. Step 5: Solve for x
    x = 87,080,572.30/11,081.57
  6. Step 6: Final answer
    x = 7,858.15

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Double scale
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Similar ratio
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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.