Home / 18,279.75-25,227.82-11,108.08

Finding the Fourth Proportional to 18,279.75, 25,227.82 and 11,108.08

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Solution

The fourth proportional to 18,279.75, 25,227.82 and 11,108.08 is: 15,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.75 : 25,227.82 = 11,108.08 : x
  2. Step 2: Convert to fraction form
    18,279.75/25,227.82 = 11,108.08/x
  3. Step 3: Cross multiply
    18,279.75x = 25,227.82 × 11,108.08
  4. Step 4: Simplify right side
    18,279.75x = 280,232,646.55
  5. Step 5: Solve for x
    x = 280,232,646.55/18,279.75
  6. Step 6: Final answer
    x = 15,330.23

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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.