Home / 12,932.83-19,360.97-7,986.57

Finding the Fourth Proportional to 12,932.83, 19,360.97 and 7,986.57

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Solution

The fourth proportional to 12,932.83, 19,360.97 and 7,986.57 is: 11,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.83 : 19,360.97 = 7,986.57 : x
  2. Step 2: Convert to fraction form
    12,932.83/19,360.97 = 7,986.57/x
  3. Step 3: Cross multiply
    12,932.83x = 19,360.97 × 7,986.57
  4. Step 4: Simplify right side
    12,932.83x = 154,627,645.37
  5. Step 5: Solve for x
    x = 154,627,645.37/12,932.83
  6. Step 6: Final answer
    x = 11,956.21

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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.