Home / 18,286.56-25,239.60-11,122.92

Finding the Fourth Proportional to 18,286.56, 25,239.60 and 11,122.92

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Solution

The fourth proportional to 18,286.56, 25,239.60 and 11,122.92 is: 15,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.56 : 25,239.60 = 11,122.92 : x
  2. Step 2: Convert to fraction form
    18,286.56/25,239.60 = 11,122.92/x
  3. Step 3: Cross multiply
    18,286.56x = 25,239.60 × 11,122.92
  4. Step 4: Simplify right side
    18,286.56x = 280,738,051.63
  5. Step 5: Solve for x
    x = 280,738,051.63/18,286.56
  6. Step 6: Final answer
    x = 15,352.15

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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.