Home / 18,776.08-28,145.92-8,236.56

Finding the Fourth Proportional to 18,776.08, 28,145.92 and 8,236.56

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Solution

The fourth proportional to 18,776.08, 28,145.92 and 8,236.56 is: 12,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.08 : 28,145.92 = 8,236.56 : x
  2. Step 2: Convert to fraction form
    18,776.08/28,145.92 = 8,236.56/x
  3. Step 3: Cross multiply
    18,776.08x = 28,145.92 × 8,236.56
  4. Step 4: Simplify right side
    18,776.08x = 231,825,558.84
  5. Step 5: Solve for x
    x = 231,825,558.84/18,776.08
  6. Step 6: Final answer
    x = 12,346.86

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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.