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Finding the Fourth Proportional to 8,369.45, 12,554.18 and 3,749.21

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Solution

The fourth proportional to 8,369.45, 12,554.18 and 3,749.21 is: 5,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.45 : 12,554.18 = 3,749.21 : x
  2. Step 2: Convert to fraction form
    8,369.45/12,554.18 = 3,749.21/x
  3. Step 3: Cross multiply
    8,369.45x = 12,554.18 × 3,749.21
  4. Step 4: Simplify right side
    8,369.45x = 47,068,257.20
  5. Step 5: Solve for x
    x = 47,068,257.20/8,369.45
  6. Step 6: Final answer
    x = 5,623.82

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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.