Home / 18,299.76-27,435.83-9,986.86

Finding the Fourth Proportional to 18,299.76, 27,435.83 and 9,986.86

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Solution

The fourth proportional to 18,299.76, 27,435.83 and 9,986.86 is: 14,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.76 : 27,435.83 = 9,986.86 : x
  2. Step 2: Convert to fraction form
    18,299.76/27,435.83 = 9,986.86/x
  3. Step 3: Cross multiply
    18,299.76x = 27,435.83 × 9,986.86
  4. Step 4: Simplify right side
    18,299.76x = 273,997,833.73
  5. Step 5: Solve for x
    x = 273,997,833.73/18,299.76
  6. Step 6: Final answer
    x = 14,972.76

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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.