Home / 18,540.79-27,801.96-11,529.61

Finding the Fourth Proportional to 18,540.79, 27,801.96 and 11,529.61

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Solution

The fourth proportional to 18,540.79, 27,801.96 and 11,529.61 is: 17,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.79 : 27,801.96 = 11,529.61 : x
  2. Step 2: Convert to fraction form
    18,540.79/27,801.96 = 11,529.61/x
  3. Step 3: Cross multiply
    18,540.79x = 27,801.96 × 11,529.61
  4. Step 4: Simplify right side
    18,540.79x = 320,545,756.04
  5. Step 5: Solve for x
    x = 320,545,756.04/18,540.79
  6. Step 6: Final answer
    x = 17,288.68

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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.