Home / 12,694.24-19,043.18-3,929.84

Finding the Fourth Proportional to 12,694.24, 19,043.18 and 3,929.84

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Solution

The fourth proportional to 12,694.24, 19,043.18 and 3,929.84 is: 5,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.24 : 19,043.18 = 3,929.84 : x
  2. Step 2: Convert to fraction form
    12,694.24/19,043.18 = 3,929.84/x
  3. Step 3: Cross multiply
    12,694.24x = 19,043.18 × 3,929.84
  4. Step 4: Simplify right side
    12,694.24x = 74,836,650.49
  5. Step 5: Solve for x
    x = 74,836,650.49/12,694.24
  6. Step 6: Final answer
    x = 5,895.32

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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.