Home / 12,790.06-19,187.72-5,394.54

Finding the Fourth Proportional to 12,790.06, 19,187.72 and 5,394.54

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Solution

The fourth proportional to 12,790.06, 19,187.72 and 5,394.54 is: 8,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.06 : 19,187.72 = 5,394.54 : x
  2. Step 2: Convert to fraction form
    12,790.06/19,187.72 = 5,394.54/x
  3. Step 3: Cross multiply
    12,790.06x = 19,187.72 × 5,394.54
  4. Step 4: Simplify right side
    12,790.06x = 103,508,923.05
  5. Step 5: Solve for x
    x = 103,508,923.05/12,790.06
  6. Step 6: Final answer
    x = 8,092.92

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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.