Home / 18,908.52-28,359.12-7,218.96

Finding the Fourth Proportional to 18,908.52, 28,359.12 and 7,218.96

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Solution

The fourth proportional to 18,908.52, 28,359.12 and 7,218.96 is: 10,827.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.52 : 28,359.12 = 7,218.96 : x
  2. Step 2: Convert to fraction form
    18,908.52/28,359.12 = 7,218.96/x
  3. Step 3: Cross multiply
    18,908.52x = 28,359.12 × 7,218.96
  4. Step 4: Simplify right side
    18,908.52x = 204,723,352.92
  5. Step 5: Solve for x
    x = 204,723,352.92/18,908.52
  6. Step 6: Final answer
    x = 10,827.04

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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.