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Finding the Fourth Proportional to 18,089.73, 27,138.69 and 9,769.59

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Solution

The fourth proportional to 18,089.73, 27,138.69 and 9,769.59 is: 14,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.73 : 27,138.69 = 9,769.59 : x
  2. Step 2: Convert to fraction form
    18,089.73/27,138.69 = 9,769.59/x
  3. Step 3: Cross multiply
    18,089.73x = 27,138.69 × 9,769.59
  4. Step 4: Simplify right side
    18,089.73x = 265,133,874.44
  5. Step 5: Solve for x
    x = 265,133,874.44/18,089.73
  6. Step 6: Final answer
    x = 14,656.60

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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.