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Finding the Fourth Proportional to 18,604.40, 27,910.20 and 8,074.40

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Solution

The fourth proportional to 18,604.40, 27,910.20 and 8,074.40 is: 12,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.40 : 27,910.20 = 8,074.40 : x
  2. Step 2: Convert to fraction form
    18,604.40/27,910.20 = 8,074.40/x
  3. Step 3: Cross multiply
    18,604.40x = 27,910.20 × 8,074.40
  4. Step 4: Simplify right side
    18,604.40x = 225,358,118.88
  5. Step 5: Solve for x
    x = 225,358,118.88/18,604.40
  6. Step 6: Final answer
    x = 12,113.16

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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.