Home / 17,412.91-26,122.97-7,920.71

Finding the Fourth Proportional to 17,412.91, 26,122.97 and 7,920.71

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Solution

The fourth proportional to 17,412.91, 26,122.97 and 7,920.71 is: 11,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,412.91 : 26,122.97 = 7,920.71 : x
  2. Step 2: Convert to fraction form
    17,412.91/26,122.97 = 7,920.71/x
  3. Step 3: Cross multiply
    17,412.91x = 26,122.97 × 7,920.71
  4. Step 4: Simplify right side
    17,412.91x = 206,912,358.90
  5. Step 5: Solve for x
    x = 206,912,358.90/17,412.91
  6. Step 6: Final answer
    x = 11,882.70

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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.