Home / 18,067.41-27,089.72-8,709.78

Finding the Fourth Proportional to 18,067.41, 27,089.72 and 8,709.78

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Solution

The fourth proportional to 18,067.41, 27,089.72 and 8,709.78 is: 13,059.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.41 : 27,089.72 = 8,709.78 : x
  2. Step 2: Convert to fraction form
    18,067.41/27,089.72 = 8,709.78/x
  3. Step 3: Cross multiply
    18,067.41x = 27,089.72 × 8,709.78
  4. Step 4: Simplify right side
    18,067.41x = 235,945,457.91
  5. Step 5: Solve for x
    x = 235,945,457.91/18,067.41
  6. Step 6: Final answer
    x = 13,059.17

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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.