Home / 12,739.05-19,006.34-11,335.73

Finding the Fourth Proportional to 12,739.05, 19,006.34 and 11,335.73

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Solution

The fourth proportional to 12,739.05, 19,006.34 and 11,335.73 is: 16,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.05 : 19,006.34 = 11,335.73 : x
  2. Step 2: Convert to fraction form
    12,739.05/19,006.34 = 11,335.73/x
  3. Step 3: Cross multiply
    12,739.05x = 19,006.34 × 11,335.73
  4. Step 4: Simplify right side
    12,739.05x = 215,450,586.82
  5. Step 5: Solve for x
    x = 215,450,586.82/12,739.05
  6. Step 6: Final answer
    x = 16,912.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.