Home / 16,769.20-23,139.99-9,215.44

Finding the Fourth Proportional to 16,769.20, 23,139.99 and 9,215.44

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Solution

The fourth proportional to 16,769.20, 23,139.99 and 9,215.44 is: 12,716.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,769.20 : 23,139.99 = 9,215.44 : x
  2. Step 2: Convert to fraction form
    16,769.20/23,139.99 = 9,215.44/x
  3. Step 3: Cross multiply
    16,769.20x = 23,139.99 × 9,215.44
  4. Step 4: Simplify right side
    16,769.20x = 213,245,189.45
  5. Step 5: Solve for x
    x = 213,245,189.45/16,769.20
  6. Step 6: Final answer
    x = 12,716.48

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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.