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Finding the Fourth Proportional to 18,410.08, 27,615.12 and 12,874.12

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Solution

The fourth proportional to 18,410.08, 27,615.12 and 12,874.12 is: 19,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.08 : 27,615.12 = 12,874.12 : x
  2. Step 2: Convert to fraction form
    18,410.08/27,615.12 = 12,874.12/x
  3. Step 3: Cross multiply
    18,410.08x = 27,615.12 × 12,874.12
  4. Step 4: Simplify right side
    18,410.08x = 355,520,368.69
  5. Step 5: Solve for x
    x = 355,520,368.69/18,410.08
  6. Step 6: Final answer
    x = 19,311.18

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Similar ratio
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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.