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Finding the Fourth Proportional to 16,661.54, 22,989.12 and 9,949.34

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Solution

The fourth proportional to 16,661.54, 22,989.12 and 9,949.34 is: 13,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.54 : 22,989.12 = 9,949.34 : x
  2. Step 2: Convert to fraction form
    16,661.54/22,989.12 = 9,949.34/x
  3. Step 3: Cross multiply
    16,661.54x = 22,989.12 × 9,949.34
  4. Step 4: Simplify right side
    16,661.54x = 228,726,456.24
  5. Step 5: Solve for x
    x = 228,726,456.24/16,661.54
  6. Step 6: Final answer
    x = 13,727.81

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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.