Home / 12,738.25-19,107.60-4,418.56

Finding the Fourth Proportional to 12,738.25, 19,107.60 and 4,418.56

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Solution

The fourth proportional to 12,738.25, 19,107.60 and 4,418.56 is: 6,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.25 : 19,107.60 = 4,418.56 : x
  2. Step 2: Convert to fraction form
    12,738.25/19,107.60 = 4,418.56/x
  3. Step 3: Cross multiply
    12,738.25x = 19,107.60 × 4,418.56
  4. Step 4: Simplify right side
    12,738.25x = 84,428,077.06
  5. Step 5: Solve for x
    x = 84,428,077.06/12,738.25
  6. Step 6: Final answer
    x = 6,627.92

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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.