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Finding the Fourth Proportional to 18,903.48, 28,372.74 and 9,550.08

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Solution

The fourth proportional to 18,903.48, 28,372.74 and 9,550.08 is: 14,333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.48 : 28,372.74 = 9,550.08 : x
  2. Step 2: Convert to fraction form
    18,903.48/28,372.74 = 9,550.08/x
  3. Step 3: Cross multiply
    18,903.48x = 28,372.74 × 9,550.08
  4. Step 4: Simplify right side
    18,903.48x = 270,961,850.37
  5. Step 5: Solve for x
    x = 270,961,850.37/18,903.48
  6. Step 6: Final answer
    x = 14,333.97

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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.