Home / 13,942.46-19,240.67-7,974.38

Finding the Fourth Proportional to 13,942.46, 19,240.67 and 7,974.38

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Solution

The fourth proportional to 13,942.46, 19,240.67 and 7,974.38 is: 11,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.46 : 19,240.67 = 7,974.38 : x
  2. Step 2: Convert to fraction form
    13,942.46/19,240.67 = 7,974.38/x
  3. Step 3: Cross multiply
    13,942.46x = 19,240.67 × 7,974.38
  4. Step 4: Simplify right side
    13,942.46x = 153,432,414.03
  5. Step 5: Solve for x
    x = 153,432,414.03/13,942.46
  6. Step 6: Final answer
    x = 11,004.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.