Home / 12,864.38-19,299.52-5,469.08

Finding the Fourth Proportional to 12,864.38, 19,299.52 and 5,469.08

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Solution

The fourth proportional to 12,864.38, 19,299.52 and 5,469.08 is: 8,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.38 : 19,299.52 = 5,469.08 : x
  2. Step 2: Convert to fraction form
    12,864.38/19,299.52 = 5,469.08/x
  3. Step 3: Cross multiply
    12,864.38x = 19,299.52 × 5,469.08
  4. Step 4: Simplify right side
    12,864.38x = 105,550,618.84
  5. Step 5: Solve for x
    x = 105,550,618.84/12,864.38
  6. Step 6: Final answer
    x = 8,204.87

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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.