Home / 18,181.60-27,286.97-9,419.02

Finding the Fourth Proportional to 18,181.60, 27,286.97 and 9,419.02

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Solution

The fourth proportional to 18,181.60, 27,286.97 and 9,419.02 is: 14,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.60 : 27,286.97 = 9,419.02 : x
  2. Step 2: Convert to fraction form
    18,181.60/27,286.97 = 9,419.02/x
  3. Step 3: Cross multiply
    18,181.60x = 27,286.97 × 9,419.02
  4. Step 4: Simplify right side
    18,181.60x = 257,016,516.17
  5. Step 5: Solve for x
    x = 257,016,516.17/18,181.60
  6. Step 6: Final answer
    x = 14,136.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.