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Finding the Fourth Proportional to 18,440.70, 27,654.65 and 11,409.96

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Solution

The fourth proportional to 18,440.70, 27,654.65 and 11,409.96 is: 17,110.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.70 : 27,654.65 = 11,409.96 : x
  2. Step 2: Convert to fraction form
    18,440.70/27,654.65 = 11,409.96/x
  3. Step 3: Cross multiply
    18,440.70x = 27,654.65 × 11,409.96
  4. Step 4: Simplify right side
    18,440.70x = 315,538,539.76
  5. Step 5: Solve for x
    x = 315,538,539.76/18,440.70
  6. Step 6: Final answer
    x = 17,110.99

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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.