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Finding the Fourth Proportional to 18,092.64, 27,139.02 and 6,406.20

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Solution

The fourth proportional to 18,092.64, 27,139.02 and 6,406.20 is: 9,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.64 : 27,139.02 = 6,406.20 : x
  2. Step 2: Convert to fraction form
    18,092.64/27,139.02 = 6,406.20/x
  3. Step 3: Cross multiply
    18,092.64x = 27,139.02 × 6,406.20
  4. Step 4: Simplify right side
    18,092.64x = 173,857,989.92
  5. Step 5: Solve for x
    x = 173,857,989.92/18,092.64
  6. Step 6: Final answer
    x = 9,609.32

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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.