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Finding the Fourth Proportional to 8,099.16, 12,129.83 and 6,235.48

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Solution

The fourth proportional to 8,099.16, 12,129.83 and 6,235.48 is: 9,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.16 : 12,129.83 = 6,235.48 : x
  2. Step 2: Convert to fraction form
    8,099.16/12,129.83 = 6,235.48/x
  3. Step 3: Cross multiply
    8,099.16x = 12,129.83 × 6,235.48
  4. Step 4: Simplify right side
    8,099.16x = 75,635,312.37
  5. Step 5: Solve for x
    x = 75,635,312.37/8,099.16
  6. Step 6: Final answer
    x = 9,338.66

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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.