Home / 12,960.49-19,477.30-7,696.41

Finding the Fourth Proportional to 12,960.49, 19,477.30 and 7,696.41

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Solution

The fourth proportional to 12,960.49, 19,477.30 and 7,696.41 is: 11,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.49 : 19,477.30 = 7,696.41 : x
  2. Step 2: Convert to fraction form
    12,960.49/19,477.30 = 7,696.41/x
  3. Step 3: Cross multiply
    12,960.49x = 19,477.30 × 7,696.41
  4. Step 4: Simplify right side
    12,960.49x = 149,905,286.49
  5. Step 5: Solve for x
    x = 149,905,286.49/12,960.49
  6. Step 6: Final answer
    x = 11,566.33

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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.