Home / 16,723.68-23,081.76-11,415.12

Finding the Fourth Proportional to 16,723.68, 23,081.76 and 11,415.12

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Solution

The fourth proportional to 16,723.68, 23,081.76 and 11,415.12 is: 15,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,723.68 : 23,081.76 = 11,415.12 : x
  2. Step 2: Convert to fraction form
    16,723.68/23,081.76 = 11,415.12/x
  3. Step 3: Cross multiply
    16,723.68x = 23,081.76 × 11,415.12
  4. Step 4: Simplify right side
    16,723.68x = 263,481,060.21
  5. Step 5: Solve for x
    x = 263,481,060.21/16,723.68
  6. Step 6: Final answer
    x = 15,754.97

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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.