Home / 11,979.23-17,972.34-3,545.96

Finding the Fourth Proportional to 11,979.23, 17,972.34 and 3,545.96

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Solution

The fourth proportional to 11,979.23, 17,972.34 and 3,545.96 is: 5,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.23 : 17,972.34 = 3,545.96 : x
  2. Step 2: Convert to fraction form
    11,979.23/17,972.34 = 3,545.96/x
  3. Step 3: Cross multiply
    11,979.23x = 17,972.34 × 3,545.96
  4. Step 4: Simplify right side
    11,979.23x = 63,729,095.59
  5. Step 5: Solve for x
    x = 63,729,095.59/11,979.23
  6. Step 6: Final answer
    x = 5,319.97

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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.