Home / 18,638.75-25,717.97-11,086.91

Finding the Fourth Proportional to 18,638.75, 25,717.97 and 11,086.91

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Solution

The fourth proportional to 18,638.75, 25,717.97 and 11,086.91 is: 15,297.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.75 : 25,717.97 = 11,086.91 : x
  2. Step 2: Convert to fraction form
    18,638.75/25,717.97 = 11,086.91/x
  3. Step 3: Cross multiply
    18,638.75x = 25,717.97 × 11,086.91
  4. Step 4: Simplify right side
    18,638.75x = 285,132,818.77
  5. Step 5: Solve for x
    x = 285,132,818.77/18,638.75
  6. Step 6: Final answer
    x = 15,297.85

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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.