Home / 11,099.92-15,319.62-6,383.20

Finding the Fourth Proportional to 11,099.92, 15,319.62 and 6,383.20

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Solution

The fourth proportional to 11,099.92, 15,319.62 and 6,383.20 is: 8,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.92 : 15,319.62 = 6,383.20 : x
  2. Step 2: Convert to fraction form
    11,099.92/15,319.62 = 6,383.20/x
  3. Step 3: Cross multiply
    11,099.92x = 15,319.62 × 6,383.20
  4. Step 4: Simplify right side
    11,099.92x = 97,788,198.38
  5. Step 5: Solve for x
    x = 97,788,198.38/11,099.92
  6. Step 6: Final answer
    x = 8,809.81

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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.