Home / 12,790.92-19,161.54-7,227.03

Finding the Fourth Proportional to 12,790.92, 19,161.54 and 7,227.03

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Solution

The fourth proportional to 12,790.92, 19,161.54 and 7,227.03 is: 10,826.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.92 : 19,161.54 = 7,227.03 : x
  2. Step 2: Convert to fraction form
    12,790.92/19,161.54 = 7,227.03/x
  3. Step 3: Cross multiply
    12,790.92x = 19,161.54 × 7,227.03
  4. Step 4: Simplify right side
    12,790.92x = 138,481,024.43
  5. Step 5: Solve for x
    x = 138,481,024.43/12,790.92
  6. Step 6: Final answer
    x = 10,826.51

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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.