Home / 12,928.53-19,392.80-3,694.53

Finding the Fourth Proportional to 12,928.53, 19,392.80 and 3,694.53

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Solution

The fourth proportional to 12,928.53, 19,392.80 and 3,694.53 is: 5,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.53 : 19,392.80 = 3,694.53 : x
  2. Step 2: Convert to fraction form
    12,928.53/19,392.80 = 3,694.53/x
  3. Step 3: Cross multiply
    12,928.53x = 19,392.80 × 3,694.53
  4. Step 4: Simplify right side
    12,928.53x = 71,647,262.91
  5. Step 5: Solve for x
    x = 71,647,262.91/12,928.53
  6. Step 6: Final answer
    x = 5,541.80

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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.