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Finding the Fourth Proportional to 18,027.83, 27,023.19 and 8,653.79

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Solution

The fourth proportional to 18,027.83, 27,023.19 and 8,653.79 is: 12,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.83 : 27,023.19 = 8,653.79 : x
  2. Step 2: Convert to fraction form
    18,027.83/27,023.19 = 8,653.79/x
  3. Step 3: Cross multiply
    18,027.83x = 27,023.19 × 8,653.79
  4. Step 4: Simplify right side
    18,027.83x = 233,853,011.39
  5. Step 5: Solve for x
    x = 233,853,011.39/18,027.83
  6. Step 6: Final answer
    x = 12,971.78

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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.