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Finding the Fourth Proportional to 18,600.72, 27,919.45 and 9,724.84

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Solution

The fourth proportional to 18,600.72, 27,919.45 and 9,724.84 is: 14,596.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.72 : 27,919.45 = 9,724.84 : x
  2. Step 2: Convert to fraction form
    18,600.72/27,919.45 = 9,724.84/x
  3. Step 3: Cross multiply
    18,600.72x = 27,919.45 × 9,724.84
  4. Step 4: Simplify right side
    18,600.72x = 271,512,126.50
  5. Step 5: Solve for x
    x = 271,512,126.50/18,600.72
  6. Step 6: Final answer
    x = 14,596.86

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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.