Home / 18,291.42-25,241.94-11,118.96

Finding the Fourth Proportional to 18,291.42, 25,241.94 and 11,118.96

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Solution

The fourth proportional to 18,291.42, 25,241.94 and 11,118.96 is: 15,344.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.42 : 25,241.94 = 11,118.96 : x
  2. Step 2: Convert to fraction form
    18,291.42/25,241.94 = 11,118.96/x
  3. Step 3: Cross multiply
    18,291.42x = 25,241.94 × 11,118.96
  4. Step 4: Simplify right side
    18,291.42x = 280,664,121.18
  5. Step 5: Solve for x
    x = 280,664,121.18/18,291.42
  6. Step 6: Final answer
    x = 15,344.03

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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.