Home / 18,248.92-27,369.24-8,378.72

Finding the Fourth Proportional to 18,248.92, 27,369.24 and 8,378.72

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Solution

The fourth proportional to 18,248.92, 27,369.24 and 8,378.72 is: 12,566.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.92 : 27,369.24 = 8,378.72 : x
  2. Step 2: Convert to fraction form
    18,248.92/27,369.24 = 8,378.72/x
  3. Step 3: Cross multiply
    18,248.92x = 27,369.24 × 8,378.72
  4. Step 4: Simplify right side
    18,248.92x = 229,319,103.10
  5. Step 5: Solve for x
    x = 229,319,103.10/18,248.92
  6. Step 6: Final answer
    x = 12,566.17

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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.