Home / 11,954.98-17,930.85-3,190.38

Finding the Fourth Proportional to 11,954.98, 17,930.85 and 3,190.38

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Solution

The fourth proportional to 11,954.98, 17,930.85 and 3,190.38 is: 4,785.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.98 : 17,930.85 = 3,190.38 : x
  2. Step 2: Convert to fraction form
    11,954.98/17,930.85 = 3,190.38/x
  3. Step 3: Cross multiply
    11,954.98x = 17,930.85 × 3,190.38
  4. Step 4: Simplify right side
    11,954.98x = 57,206,225.22
  5. Step 5: Solve for x
    x = 57,206,225.22/11,954.98
  6. Step 6: Final answer
    x = 4,785.14

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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.