Home / 7,954.88-11,932.31-2,111.54

Finding the Fourth Proportional to 7,954.88, 11,932.31 and 2,111.54

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Solution

The fourth proportional to 7,954.88, 11,932.31 and 2,111.54 is: 3,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.88 : 11,932.31 = 2,111.54 : x
  2. Step 2: Convert to fraction form
    7,954.88/11,932.31 = 2,111.54/x
  3. Step 3: Cross multiply
    7,954.88x = 11,932.31 × 2,111.54
  4. Step 4: Simplify right side
    7,954.88x = 25,195,495.47
  5. Step 5: Solve for x
    x = 25,195,495.47/7,954.88
  6. Step 6: Final answer
    x = 3,167.30

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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.