Home / 16,464.12-22,720.49-8,910.45

Finding the Fourth Proportional to 16,464.12, 22,720.49 and 8,910.45

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Solution

The fourth proportional to 16,464.12, 22,720.49 and 8,910.45 is: 12,296.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,464.12 : 22,720.49 = 8,910.45 : x
  2. Step 2: Convert to fraction form
    16,464.12/22,720.49 = 8,910.45/x
  3. Step 3: Cross multiply
    16,464.12x = 22,720.49 × 8,910.45
  4. Step 4: Simplify right side
    16,464.12x = 202,449,745.57
  5. Step 5: Solve for x
    x = 202,449,745.57/16,464.12
  6. Step 6: Final answer
    x = 12,296.42

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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.