Home / 11,272.28-15,555.10-6,236.21

Finding the Fourth Proportional to 11,272.28, 15,555.10 and 6,236.21

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Solution

The fourth proportional to 11,272.28, 15,555.10 and 6,236.21 is: 8,605.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.28 : 15,555.10 = 6,236.21 : x
  2. Step 2: Convert to fraction form
    11,272.28/15,555.10 = 6,236.21/x
  3. Step 3: Cross multiply
    11,272.28x = 15,555.10 × 6,236.21
  4. Step 4: Simplify right side
    11,272.28x = 97,004,761.21
  5. Step 5: Solve for x
    x = 97,004,761.21/11,272.28
  6. Step 6: Final answer
    x = 8,605.61

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Half scale
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Double scale
Find fourth proportional to 11,273.28, 15,556.47 and 6,237.21
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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.