Home / 8,109.24-11,185.68-6,217.74

Finding the Fourth Proportional to 8,109.24, 11,185.68 and 6,217.74

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Solution

The fourth proportional to 8,109.24, 11,185.68 and 6,217.74 is: 8,576.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.24 : 11,185.68 = 6,217.74 : x
  2. Step 2: Convert to fraction form
    8,109.24/11,185.68 = 6,217.74/x
  3. Step 3: Cross multiply
    8,109.24x = 11,185.68 × 6,217.74
  4. Step 4: Simplify right side
    8,109.24x = 69,549,649.96
  5. Step 5: Solve for x
    x = 69,549,649.96/8,109.24
  6. Step 6: Final answer
    x = 8,576.59

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Half scale
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Double scale
Find fourth proportional to 8,110.24, 11,187.06 and 6,218.74
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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.