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Finding the Fourth Proportional to 18,673, 27,999.60 and 5,523.55

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Solution

The fourth proportional to 18,673, 27,999.60 and 5,523.55 is: 8,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673 : 27,999.60 = 5,523.55 : x
  2. Step 2: Convert to fraction form
    18,673/27,999.60 = 5,523.55/x
  3. Step 3: Cross multiply
    18,673x = 27,999.60 × 5,523.55
  4. Step 4: Simplify right side
    18,673x = 154,657,190.58
  5. Step 5: Solve for x
    x = 154,657,190.58/18,673
  6. Step 6: Final answer
    x = 8,282.40

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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.