Home / 12,747.92-19,118.64-5,724

Finding the Fourth Proportional to 12,747.92, 19,118.64 and 5,724

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Solution

The fourth proportional to 12,747.92, 19,118.64 and 5,724 is: 8,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.92 : 19,118.64 = 5,724 : x
  2. Step 2: Convert to fraction form
    12,747.92/19,118.64 = 5,724/x
  3. Step 3: Cross multiply
    12,747.92x = 19,118.64 × 5,724
  4. Step 4: Simplify right side
    12,747.92x = 109,435,095.36
  5. Step 5: Solve for x
    x = 109,435,095.36/12,747.92
  6. Step 6: Final answer
    x = 8,584.55

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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.