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Finding the Fourth Proportional to 18,157.10, 27,197.36 and 8,304.68

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Solution

The fourth proportional to 18,157.10, 27,197.36 and 8,304.68 is: 12,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.10 : 27,197.36 = 8,304.68 : x
  2. Step 2: Convert to fraction form
    18,157.10/27,197.36 = 8,304.68/x
  3. Step 3: Cross multiply
    18,157.10x = 27,197.36 × 8,304.68
  4. Step 4: Simplify right side
    18,157.10x = 225,865,371.64
  5. Step 5: Solve for x
    x = 225,865,371.64/18,157.10
  6. Step 6: Final answer
    x = 12,439.51

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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.