Home / 12,928.16-19,395.44-3,694.16

Finding the Fourth Proportional to 12,928.16, 19,395.44 and 3,694.16

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Solution

The fourth proportional to 12,928.16, 19,395.44 and 3,694.16 is: 5,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.16 : 19,395.44 = 3,694.16 : x
  2. Step 2: Convert to fraction form
    12,928.16/19,395.44 = 3,694.16/x
  3. Step 3: Cross multiply
    12,928.16x = 19,395.44 × 3,694.16
  4. Step 4: Simplify right side
    12,928.16x = 71,649,858.63
  5. Step 5: Solve for x
    x = 71,649,858.63/12,928.16
  6. Step 6: Final answer
    x = 5,542.15

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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.