Home / 18,206.72-25,118.52-11,922.56

Finding the Fourth Proportional to 18,206.72, 25,118.52 and 11,922.56

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Solution

The fourth proportional to 18,206.72, 25,118.52 and 11,922.56 is: 16,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.72 : 25,118.52 = 11,922.56 : x
  2. Step 2: Convert to fraction form
    18,206.72/25,118.52 = 11,922.56/x
  3. Step 3: Cross multiply
    18,206.72x = 25,118.52 × 11,922.56
  4. Step 4: Simplify right side
    18,206.72x = 299,477,061.81
  5. Step 5: Solve for x
    x = 299,477,061.81/18,206.72
  6. Step 6: Final answer
    x = 16,448.71

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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.