Home / 12,976.56-19,467.68-4,212.36

Finding the Fourth Proportional to 12,976.56, 19,467.68 and 4,212.36

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Solution

The fourth proportional to 12,976.56, 19,467.68 and 4,212.36 is: 6,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.56 : 19,467.68 = 4,212.36 : x
  2. Step 2: Convert to fraction form
    12,976.56/19,467.68 = 4,212.36/x
  3. Step 3: Cross multiply
    12,976.56x = 19,467.68 × 4,212.36
  4. Step 4: Simplify right side
    12,976.56x = 82,004,876.52
  5. Step 5: Solve for x
    x = 82,004,876.52/12,976.56
  6. Step 6: Final answer
    x = 6,319.46

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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.