Home / 21,286.57-29,375.19-11,726.26

Finding the Fourth Proportional to 21,286.57, 29,375.19 and 11,726.26

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Solution

The fourth proportional to 21,286.57, 29,375.19 and 11,726.26 is: 16,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.57 : 29,375.19 = 11,726.26 : x
  2. Step 2: Convert to fraction form
    21,286.57/29,375.19 = 11,726.26/x
  3. Step 3: Cross multiply
    21,286.57x = 29,375.19 × 11,726.26
  4. Step 4: Simplify right side
    21,286.57x = 344,461,115.49
  5. Step 5: Solve for x
    x = 344,461,115.49/21,286.57
  6. Step 6: Final answer
    x = 16,182.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.