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Finding the Fourth Proportional to 8,062.92, 12,099.00 and 3,131.92

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Solution

The fourth proportional to 8,062.92, 12,099.00 and 3,131.92 is: 4,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.92 : 12,099.00 = 3,131.92 : x
  2. Step 2: Convert to fraction form
    8,062.92/12,099.00 = 3,131.92/x
  3. Step 3: Cross multiply
    8,062.92x = 12,099.00 × 3,131.92
  4. Step 4: Simplify right side
    8,062.92x = 37,893,122.50
  5. Step 5: Solve for x
    x = 37,893,122.50/8,062.92
  6. Step 6: Final answer
    x = 4,699.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.