Home / 12,696.26-19,045.28-3,930.02

Finding the Fourth Proportional to 12,696.26, 19,045.28 and 3,930.02

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Solution

The fourth proportional to 12,696.26, 19,045.28 and 3,930.02 is: 5,895.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.26 : 19,045.28 = 3,930.02 : x
  2. Step 2: Convert to fraction form
    12,696.26/19,045.28 = 3,930.02/x
  3. Step 3: Cross multiply
    12,696.26x = 19,045.28 × 3,930.02
  4. Step 4: Simplify right side
    12,696.26x = 74,848,331.31
  5. Step 5: Solve for x
    x = 74,848,331.31/12,696.26
  6. Step 6: Final answer
    x = 5,895.31

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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.