Home / 18,310.91-27,456.64-12,469.19

Finding the Fourth Proportional to 18,310.91, 27,456.64 and 12,469.19

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Solution

The fourth proportional to 18,310.91, 27,456.64 and 12,469.19 is: 18,697.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.91 : 27,456.64 = 12,469.19 : x
  2. Step 2: Convert to fraction form
    18,310.91/27,456.64 = 12,469.19/x
  3. Step 3: Cross multiply
    18,310.91x = 27,456.64 × 12,469.19
  4. Step 4: Simplify right side
    18,310.91x = 342,361,892.47
  5. Step 5: Solve for x
    x = 342,361,892.47/18,310.91
  6. Step 6: Final answer
    x = 18,697.16

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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.