Home / 18,148.52-27,225.99-8,288.79

Finding the Fourth Proportional to 18,148.52, 27,225.99 and 8,288.79

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Solution

The fourth proportional to 18,148.52, 27,225.99 and 8,288.79 is: 12,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.52 : 27,225.99 = 8,288.79 : x
  2. Step 2: Convert to fraction form
    18,148.52/27,225.99 = 8,288.79/x
  3. Step 3: Cross multiply
    18,148.52x = 27,225.99 × 8,288.79
  4. Step 4: Simplify right side
    18,148.52x = 225,670,513.65
  5. Step 5: Solve for x
    x = 225,670,513.65/18,148.52
  6. Step 6: Final answer
    x = 12,434.65

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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.