Home / 17,120.08-25,668.60-8,789.68

Finding the Fourth Proportional to 17,120.08, 25,668.60 and 8,789.68

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Solution

The fourth proportional to 17,120.08, 25,668.60 and 8,789.68 is: 13,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.08 : 25,668.60 = 8,789.68 : x
  2. Step 2: Convert to fraction form
    17,120.08/25,668.60 = 8,789.68/x
  3. Step 3: Cross multiply
    17,120.08x = 25,668.60 × 8,789.68
  4. Step 4: Simplify right side
    17,120.08x = 225,618,780.05
  5. Step 5: Solve for x
    x = 225,618,780.05/17,120.08
  6. Step 6: Final answer
    x = 13,178.61

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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.