Home / 18,217.81-27,321.60-11,544.42

Finding the Fourth Proportional to 18,217.81, 27,321.60 and 11,544.42

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Solution

The fourth proportional to 18,217.81, 27,321.60 and 11,544.42 is: 17,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.81 : 27,321.60 = 11,544.42 : x
  2. Step 2: Convert to fraction form
    18,217.81/27,321.60 = 11,544.42/x
  3. Step 3: Cross multiply
    18,217.81x = 27,321.60 × 11,544.42
  4. Step 4: Simplify right side
    18,217.81x = 315,412,171.22
  5. Step 5: Solve for x
    x = 315,412,171.22/18,217.81
  6. Step 6: Final answer
    x = 17,313.40

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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.