Home / 18,158.10-27,198.88-8,305.67

Finding the Fourth Proportional to 18,158.10, 27,198.88 and 8,305.67

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Solution

The fourth proportional to 18,158.10, 27,198.88 and 8,305.67 is: 12,441.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.10 : 27,198.88 = 8,305.67 : x
  2. Step 2: Convert to fraction form
    18,158.10/27,198.88 = 8,305.67/x
  3. Step 3: Cross multiply
    18,158.10x = 27,198.88 × 8,305.67
  4. Step 4: Simplify right side
    18,158.10x = 225,904,921.65
  5. Step 5: Solve for x
    x = 225,904,921.65/18,158.10
  6. Step 6: Final answer
    x = 12,441.00

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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.