Home / 16,775.10-23,149.92-9,221.75

Finding the Fourth Proportional to 16,775.10, 23,149.92 and 9,221.75

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Solution

The fourth proportional to 16,775.10, 23,149.92 and 9,221.75 is: 12,726.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.10 : 23,149.92 = 9,221.75 : x
  2. Step 2: Convert to fraction form
    16,775.10/23,149.92 = 9,221.75/x
  3. Step 3: Cross multiply
    16,775.10x = 23,149.92 × 9,221.75
  4. Step 4: Simplify right side
    16,775.10x = 213,482,659.01
  5. Step 5: Solve for x
    x = 213,482,659.01/16,775.10
  6. Step 6: Final answer
    x = 12,726.17

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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.