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Finding the Fourth Proportional to 18,162.30, 27,253.80 and 7,067.55

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Solution

The fourth proportional to 18,162.30, 27,253.80 and 7,067.55 is: 10,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.30 : 27,253.80 = 7,067.55 : x
  2. Step 2: Convert to fraction form
    18,162.30/27,253.80 = 7,067.55/x
  3. Step 3: Cross multiply
    18,162.30x = 27,253.80 × 7,067.55
  4. Step 4: Simplify right side
    18,162.30x = 192,617,594.19
  5. Step 5: Solve for x
    x = 192,617,594.19/18,162.30
  6. Step 6: Final answer
    x = 10,605.35

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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.