Home / 18,162.67-27,281.37-11,931.54

Finding the Fourth Proportional to 18,162.67, 27,281.37 and 11,931.54

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Solution

The fourth proportional to 18,162.67, 27,281.37 and 11,931.54 is: 17,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.67 : 27,281.37 = 11,931.54 : x
  2. Step 2: Convert to fraction form
    18,162.67/27,281.37 = 11,931.54/x
  3. Step 3: Cross multiply
    18,162.67x = 27,281.37 × 11,931.54
  4. Step 4: Simplify right side
    18,162.67x = 325,508,757.41
  5. Step 5: Solve for x
    x = 325,508,757.41/18,162.67
  6. Step 6: Final answer
    x = 17,921.86

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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.