Home / 11,891.29-17,821.43-6,626.09

Finding the Fourth Proportional to 11,891.29, 17,821.43 and 6,626.09

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Solution

The fourth proportional to 11,891.29, 17,821.43 and 6,626.09 is: 9,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.29 : 17,821.43 = 6,626.09 : x
  2. Step 2: Convert to fraction form
    11,891.29/17,821.43 = 6,626.09/x
  3. Step 3: Cross multiply
    11,891.29x = 17,821.43 × 6,626.09
  4. Step 4: Simplify right side
    11,891.29x = 118,086,372.41
  5. Step 5: Solve for x
    x = 118,086,372.41/11,891.29
  6. Step 6: Final answer
    x = 9,930.49

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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.