Home / 16,775.30-23,149.41-9,221.62

Finding the Fourth Proportional to 16,775.30, 23,149.41 and 9,221.62

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Solution

The fourth proportional to 16,775.30, 23,149.41 and 9,221.62 is: 12,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.30 : 23,149.41 = 9,221.62 : x
  2. Step 2: Convert to fraction form
    16,775.30/23,149.41 = 9,221.62/x
  3. Step 3: Cross multiply
    16,775.30x = 23,149.41 × 9,221.62
  4. Step 4: Simplify right side
    16,775.30x = 213,475,062.24
  5. Step 5: Solve for x
    x = 213,475,062.24/16,775.30
  6. Step 6: Final answer
    x = 12,725.56

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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.