Home / 12,694.74-19,043.93-3,930.34

Finding the Fourth Proportional to 12,694.74, 19,043.93 and 3,930.34

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Solution

The fourth proportional to 12,694.74, 19,043.93 and 3,930.34 is: 5,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.74 : 19,043.93 = 3,930.34 : x
  2. Step 2: Convert to fraction form
    12,694.74/19,043.93 = 3,930.34/x
  3. Step 3: Cross multiply
    12,694.74x = 19,043.93 × 3,930.34
  4. Step 4: Simplify right side
    12,694.74x = 74,849,119.84
  5. Step 5: Solve for x
    x = 74,849,119.84/12,694.74
  6. Step 6: Final answer
    x = 5,896.07

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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.