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Finding the Fourth Proportional to 11,903, 16,403.49 and 8,717.27

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Solution

The fourth proportional to 11,903, 16,403.49 and 8,717.27 is: 12,013.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903 : 16,403.49 = 8,717.27 : x
  2. Step 2: Convert to fraction form
    11,903/16,403.49 = 8,717.27/x
  3. Step 3: Cross multiply
    11,903x = 16,403.49 × 8,717.27
  4. Step 4: Simplify right side
    11,903x = 142,993,651.27
  5. Step 5: Solve for x
    x = 142,993,651.27/11,903
  6. Step 6: Final answer
    x = 12,013.24

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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.