Home / 15,383.66-21,229.46-8,310.08

Finding the Fourth Proportional to 15,383.66, 21,229.46 and 8,310.08

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Solution

The fourth proportional to 15,383.66, 21,229.46 and 8,310.08 is: 11,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.66 : 21,229.46 = 8,310.08 : x
  2. Step 2: Convert to fraction form
    15,383.66/21,229.46 = 8,310.08/x
  3. Step 3: Cross multiply
    15,383.66x = 21,229.46 × 8,310.08
  4. Step 4: Simplify right side
    15,383.66x = 176,418,469.41
  5. Step 5: Solve for x
    x = 176,418,469.41/15,383.66
  6. Step 6: Final answer
    x = 11,467.91

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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.