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Finding the Fourth Proportional to 18,015.96, 24,861.78 and 9,949.44

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Solution

The fourth proportional to 18,015.96, 24,861.78 and 9,949.44 is: 13,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.96 : 24,861.78 = 9,949.44 : x
  2. Step 2: Convert to fraction form
    18,015.96/24,861.78 = 9,949.44/x
  3. Step 3: Cross multiply
    18,015.96x = 24,861.78 × 9,949.44
  4. Step 4: Simplify right side
    18,015.96x = 247,360,788.40
  5. Step 5: Solve for x
    x = 247,360,788.40/18,015.96
  6. Step 6: Final answer
    x = 13,730.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.