Home / 12,864.12-19,296.99-4,099.38

Finding the Fourth Proportional to 12,864.12, 19,296.99 and 4,099.38

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Solution

The fourth proportional to 12,864.12, 19,296.99 and 4,099.38 is: 6,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.12 : 19,296.99 = 4,099.38 : x
  2. Step 2: Convert to fraction form
    12,864.12/19,296.99 = 4,099.38/x
  3. Step 3: Cross multiply
    12,864.12x = 19,296.99 × 4,099.38
  4. Step 4: Simplify right side
    12,864.12x = 79,105,694.87
  5. Step 5: Solve for x
    x = 79,105,694.87/12,864.12
  6. Step 6: Final answer
    x = 6,149.33

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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.