Home / 12,759.91-19,132.50-4,959.61

Finding the Fourth Proportional to 12,759.91, 19,132.50 and 4,959.61

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Solution

The fourth proportional to 12,759.91, 19,132.50 and 4,959.61 is: 7,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.91 : 19,132.50 = 4,959.61 : x
  2. Step 2: Convert to fraction form
    12,759.91/19,132.50 = 4,959.61/x
  3. Step 3: Cross multiply
    12,759.91x = 19,132.50 × 4,959.61
  4. Step 4: Simplify right side
    12,759.91x = 94,889,738.33
  5. Step 5: Solve for x
    x = 94,889,738.33/12,759.91
  6. Step 6: Final answer
    x = 7,436.55

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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.