Home / 17,679.20-26,514.68-7,813.10

Finding the Fourth Proportional to 17,679.20, 26,514.68 and 7,813.10

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Solution

The fourth proportional to 17,679.20, 26,514.68 and 7,813.10 is: 11,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.20 : 26,514.68 = 7,813.10 : x
  2. Step 2: Convert to fraction form
    17,679.20/26,514.68 = 7,813.10/x
  3. Step 3: Cross multiply
    17,679.20x = 26,514.68 × 7,813.10
  4. Step 4: Simplify right side
    17,679.20x = 207,161,846.31
  5. Step 5: Solve for x
    x = 207,161,846.31/17,679.20
  6. Step 6: Final answer
    x = 11,717.83

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1.5x scale

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.