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Finding the Fourth Proportional to 12,874.11, 19,311.17 and 4,549.56

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Solution

The fourth proportional to 12,874.11, 19,311.17 and 4,549.56 is: 6,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.11 : 19,311.17 = 4,549.56 : x
  2. Step 2: Convert to fraction form
    12,874.11/19,311.17 = 4,549.56/x
  3. Step 3: Cross multiply
    12,874.11x = 19,311.17 × 4,549.56
  4. Step 4: Simplify right side
    12,874.11x = 87,857,303.84
  5. Step 5: Solve for x
    x = 87,857,303.84/12,874.11
  6. Step 6: Final answer
    x = 6,824.34

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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.