Home / 8,113.92-11,197.44-6,120.96

Finding the Fourth Proportional to 8,113.92, 11,197.44 and 6,120.96

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Solution

The fourth proportional to 8,113.92, 11,197.44 and 6,120.96 is: 8,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.92 : 11,197.44 = 6,120.96 : x
  2. Step 2: Convert to fraction form
    8,113.92/11,197.44 = 6,120.96/x
  3. Step 3: Cross multiply
    8,113.92x = 11,197.44 × 6,120.96
  4. Step 4: Simplify right side
    8,113.92x = 68,539,082.34
  5. Step 5: Solve for x
    x = 68,539,082.34/8,113.92
  6. Step 6: Final answer
    x = 8,447.10

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Half scale
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Double scale
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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.