Home / 7,826.77-11,738.91-2,561.73

Finding the Fourth Proportional to 7,826.77, 11,738.91 and 2,561.73

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Solution

The fourth proportional to 7,826.77, 11,738.91 and 2,561.73 is: 3,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.77 : 11,738.91 = 2,561.73 : x
  2. Step 2: Convert to fraction form
    7,826.77/11,738.91 = 2,561.73/x
  3. Step 3: Cross multiply
    7,826.77x = 11,738.91 × 2,561.73
  4. Step 4: Simplify right side
    7,826.77x = 30,071,917.91
  5. Step 5: Solve for x
    x = 30,071,917.91/7,826.77
  6. Step 6: Final answer
    x = 3,842.19

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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.