Home / 16,179.30-22,321.64-9,105.70

Finding the Fourth Proportional to 16,179.30, 22,321.64 and 9,105.70

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Solution

The fourth proportional to 16,179.30, 22,321.64 and 9,105.70 is: 12,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,179.30 : 22,321.64 = 9,105.70 : x
  2. Step 2: Convert to fraction form
    16,179.30/22,321.64 = 9,105.70/x
  3. Step 3: Cross multiply
    16,179.30x = 22,321.64 × 9,105.70
  4. Step 4: Simplify right side
    16,179.30x = 203,254,157.35
  5. Step 5: Solve for x
    x = 203,254,157.35/16,179.30
  6. Step 6: Final answer
    x = 12,562.61

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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.