Home / 8,099.90-11,181.62-5,711.82

Finding the Fourth Proportional to 8,099.90, 11,181.62 and 5,711.82

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Solution

The fourth proportional to 8,099.90, 11,181.62 and 5,711.82 is: 7,884.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.90 : 11,181.62 = 5,711.82 : x
  2. Step 2: Convert to fraction form
    8,099.90/11,181.62 = 5,711.82/x
  3. Step 3: Cross multiply
    8,099.90x = 11,181.62 × 5,711.82
  4. Step 4: Simplify right side
    8,099.90x = 63,867,393.61
  5. Step 5: Solve for x
    x = 63,867,393.61/8,099.90
  6. Step 6: Final answer
    x = 7,884.96

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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.