Home / 6,516.45-8,992.86-3,997.11

Finding the Fourth Proportional to 6,516.45, 8,992.86 and 3,997.11

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Solution

The fourth proportional to 6,516.45, 8,992.86 and 3,997.11 is: 5,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.45 : 8,992.86 = 3,997.11 : x
  2. Step 2: Convert to fraction form
    6,516.45/8,992.86 = 3,997.11/x
  3. Step 3: Cross multiply
    6,516.45x = 8,992.86 × 3,997.11
  4. Step 4: Simplify right side
    6,516.45x = 35,945,450.63
  5. Step 5: Solve for x
    x = 35,945,450.63/6,516.45
  6. Step 6: Final answer
    x = 5,516.11

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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.