Home / 12,918.44-19,376.22-3,559.16

Finding the Fourth Proportional to 12,918.44, 19,376.22 and 3,559.16

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Solution

The fourth proportional to 12,918.44, 19,376.22 and 3,559.16 is: 5,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.44 : 19,376.22 = 3,559.16 : x
  2. Step 2: Convert to fraction form
    12,918.44/19,376.22 = 3,559.16/x
  3. Step 3: Cross multiply
    12,918.44x = 19,376.22 × 3,559.16
  4. Step 4: Simplify right side
    12,918.44x = 68,963,067.18
  5. Step 5: Solve for x
    x = 68,963,067.18/12,918.44
  6. Step 6: Final answer
    x = 5,338.34

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1.5x scale

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.