Home / 8,724.64-13,086.96-4,108

Finding the Fourth Proportional to 8,724.64, 13,086.96 and 4,108

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Solution

The fourth proportional to 8,724.64, 13,086.96 and 4,108 is: 6,162

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.64 : 13,086.96 = 4,108 : x
  2. Step 2: Convert to fraction form
    8,724.64/13,086.96 = 4,108/x
  3. Step 3: Cross multiply
    8,724.64x = 13,086.96 × 4,108
  4. Step 4: Simplify right side
    8,724.64x = 53,761,231.68
  5. Step 5: Solve for x
    x = 53,761,231.68/8,724.64
  6. Step 6: Final answer
    x = 6,162

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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.