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Finding the Fourth Proportional to 12,506.62, 18,760.20 and 3,741.88

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Solution

The fourth proportional to 12,506.62, 18,760.20 and 3,741.88 is: 5,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.62 : 18,760.20 = 3,741.88 : x
  2. Step 2: Convert to fraction form
    12,506.62/18,760.20 = 3,741.88/x
  3. Step 3: Cross multiply
    12,506.62x = 18,760.20 × 3,741.88
  4. Step 4: Simplify right side
    12,506.62x = 70,198,417.18
  5. Step 5: Solve for x
    x = 70,198,417.18/12,506.62
  6. Step 6: Final answer
    x = 5,612.90

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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.