Home / 18,221.61-25,145.97-11,049.15

Finding the Fourth Proportional to 18,221.61, 25,145.97 and 11,049.15

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Solution

The fourth proportional to 18,221.61, 25,145.97 and 11,049.15 is: 15,247.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.61 : 25,145.97 = 11,049.15 : x
  2. Step 2: Convert to fraction form
    18,221.61/25,145.97 = 11,049.15/x
  3. Step 3: Cross multiply
    18,221.61x = 25,145.97 × 11,049.15
  4. Step 4: Simplify right side
    18,221.61x = 277,841,594.43
  5. Step 5: Solve for x
    x = 277,841,594.43/18,221.61
  6. Step 6: Final answer
    x = 15,247.92

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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.