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Finding the Fourth Proportional to 17,769.80, 26,654.70 and 11,894.60

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Solution

The fourth proportional to 17,769.80, 26,654.70 and 11,894.60 is: 17,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,769.80 : 26,654.70 = 11,894.60 : x
  2. Step 2: Convert to fraction form
    17,769.80/26,654.70 = 11,894.60/x
  3. Step 3: Cross multiply
    17,769.80x = 26,654.70 × 11,894.60
  4. Step 4: Simplify right side
    17,769.80x = 317,046,994.62
  5. Step 5: Solve for x
    x = 317,046,994.62/17,769.80
  6. Step 6: Final answer
    x = 17,841.90

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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.