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Finding the Fourth Proportional to 18,195, 25,110.27 and 11,029.86

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Solution

The fourth proportional to 18,195, 25,110.27 and 11,029.86 is: 15,221.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195 : 25,110.27 = 11,029.86 : x
  2. Step 2: Convert to fraction form
    18,195/25,110.27 = 11,029.86/x
  3. Step 3: Cross multiply
    18,195x = 25,110.27 × 11,029.86
  4. Step 4: Simplify right side
    18,195x = 276,962,762.66
  5. Step 5: Solve for x
    x = 276,962,762.66/18,195
  6. Step 6: Final answer
    x = 15,221.92

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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.