Home / 13,942.96-19,240.97-7,974.28

Finding the Fourth Proportional to 13,942.96, 19,240.97 and 7,974.28

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Solution

The fourth proportional to 13,942.96, 19,240.97 and 7,974.28 is: 11,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.96 : 19,240.97 = 7,974.28 : x
  2. Step 2: Convert to fraction form
    13,942.96/19,240.97 = 7,974.28/x
  3. Step 3: Cross multiply
    13,942.96x = 19,240.97 × 7,974.28
  4. Step 4: Simplify right side
    13,942.96x = 153,432,882.25
  5. Step 5: Solve for x
    x = 153,432,882.25/13,942.96
  6. Step 6: Final answer
    x = 11,004.33

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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.