Home / 18,435.18-27,653.73-5,286.30

Finding the Fourth Proportional to 18,435.18, 27,653.73 and 5,286.30

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Solution

The fourth proportional to 18,435.18, 27,653.73 and 5,286.30 is: 7,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.18 : 27,653.73 = 5,286.30 : x
  2. Step 2: Convert to fraction form
    18,435.18/27,653.73 = 5,286.30/x
  3. Step 3: Cross multiply
    18,435.18x = 27,653.73 × 5,286.30
  4. Step 4: Simplify right side
    18,435.18x = 146,185,912.90
  5. Step 5: Solve for x
    x = 146,185,912.90/18,435.18
  6. Step 6: Final answer
    x = 7,929.73

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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.