Home / 18,072.99-27,110.30-7,940.70

Finding the Fourth Proportional to 18,072.99, 27,110.30 and 7,940.70

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Solution

The fourth proportional to 18,072.99, 27,110.30 and 7,940.70 is: 11,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.99 : 27,110.30 = 7,940.70 : x
  2. Step 2: Convert to fraction form
    18,072.99/27,110.30 = 7,940.70/x
  3. Step 3: Cross multiply
    18,072.99x = 27,110.30 × 7,940.70
  4. Step 4: Simplify right side
    18,072.99x = 215,274,719.51
  5. Step 5: Solve for x
    x = 215,274,719.51/18,072.99
  6. Step 6: Final answer
    x = 11,911.41

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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.