Home / 26,783.80-40,163.10-11,992.84

Finding the Fourth Proportional to 26,783.80, 40,163.10 and 11,992.84

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Solution

The fourth proportional to 26,783.80, 40,163.10 and 11,992.84 is: 17,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.80 : 40,163.10 = 11,992.84 : x
  2. Step 2: Convert to fraction form
    26,783.80/40,163.10 = 11,992.84/x
  3. Step 3: Cross multiply
    26,783.80x = 40,163.10 × 11,992.84
  4. Step 4: Simplify right side
    26,783.80x = 481,669,632.20
  5. Step 5: Solve for x
    x = 481,669,632.20/26,783.80
  6. Step 6: Final answer
    x = 17,983.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.