Home / 12,776.73-19,169.64-4,879.83

Finding the Fourth Proportional to 12,776.73, 19,169.64 and 4,879.83

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Solution

The fourth proportional to 12,776.73, 19,169.64 and 4,879.83 is: 7,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.73 : 19,169.64 = 4,879.83 : x
  2. Step 2: Convert to fraction form
    12,776.73/19,169.64 = 4,879.83/x
  3. Step 3: Cross multiply
    12,776.73x = 19,169.64 × 4,879.83
  4. Step 4: Simplify right side
    12,776.73x = 93,544,584.36
  5. Step 5: Solve for x
    x = 93,544,584.36/12,776.73
  6. Step 6: Final answer
    x = 7,321.48

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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.