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Finding the Fourth Proportional to 18,436.60, 27,657.60 and 6,747.04

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Solution

The fourth proportional to 18,436.60, 27,657.60 and 6,747.04 is: 10,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.60 : 27,657.60 = 6,747.04 : x
  2. Step 2: Convert to fraction form
    18,436.60/27,657.60 = 6,747.04/x
  3. Step 3: Cross multiply
    18,436.60x = 27,657.60 × 6,747.04
  4. Step 4: Simplify right side
    18,436.60x = 186,606,933.50
  5. Step 5: Solve for x
    x = 186,606,933.50/18,436.60
  6. Step 6: Final answer
    x = 10,121.55

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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.