Home / 18,424.20-27,645.30-8,558.40

Finding the Fourth Proportional to 18,424.20, 27,645.30 and 8,558.40

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Solution

The fourth proportional to 18,424.20, 27,645.30 and 8,558.40 is: 12,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.20 : 27,645.30 = 8,558.40 : x
  2. Step 2: Convert to fraction form
    18,424.20/27,645.30 = 8,558.40/x
  3. Step 3: Cross multiply
    18,424.20x = 27,645.30 × 8,558.40
  4. Step 4: Simplify right side
    18,424.20x = 236,599,535.52
  5. Step 5: Solve for x
    x = 236,599,535.52/18,424.20
  6. Step 6: Final answer
    x = 12,841.78

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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.