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Finding the Fourth Proportional to 11,305.43, 16,945.02 and 4,280.97

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Solution

The fourth proportional to 11,305.43, 16,945.02 and 4,280.97 is: 6,416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.43 : 16,945.02 = 4,280.97 : x
  2. Step 2: Convert to fraction form
    11,305.43/16,945.02 = 4,280.97/x
  3. Step 3: Cross multiply
    11,305.43x = 16,945.02 × 4,280.97
  4. Step 4: Simplify right side
    11,305.43x = 72,541,122.27
  5. Step 5: Solve for x
    x = 72,541,122.27/11,305.43
  6. Step 6: Final answer
    x = 6,416.49

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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.