Home / 18,209.74-25,124.97-11,133.58

Finding the Fourth Proportional to 18,209.74, 25,124.97 and 11,133.58

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Solution

The fourth proportional to 18,209.74, 25,124.97 and 11,133.58 is: 15,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.74 : 25,124.97 = 11,133.58 : x
  2. Step 2: Convert to fraction form
    18,209.74/25,124.97 = 11,133.58/x
  3. Step 3: Cross multiply
    18,209.74x = 25,124.97 × 11,133.58
  4. Step 4: Simplify right side
    18,209.74x = 279,730,863.49
  5. Step 5: Solve for x
    x = 279,730,863.49/18,209.74
  6. Step 6: Final answer
    x = 15,361.61

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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.