Home / 12,696.45-19,047.45-3,811.41

Finding the Fourth Proportional to 12,696.45, 19,047.45 and 3,811.41

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Solution

The fourth proportional to 12,696.45, 19,047.45 and 3,811.41 is: 5,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.45 : 19,047.45 = 3,811.41 : x
  2. Step 2: Convert to fraction form
    12,696.45/19,047.45 = 3,811.41/x
  3. Step 3: Cross multiply
    12,696.45x = 19,047.45 × 3,811.41
  4. Step 4: Simplify right side
    12,696.45x = 72,597,641.40
  5. Step 5: Solve for x
    x = 72,597,641.40/12,696.45
  6. Step 6: Final answer
    x = 5,717.95

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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.