Home / 11,707.87-17,561.81-2,942.79

Finding the Fourth Proportional to 11,707.87, 17,561.81 and 2,942.79

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Solution

The fourth proportional to 11,707.87, 17,561.81 and 2,942.79 is: 4,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.87 : 17,561.81 = 2,942.79 : x
  2. Step 2: Convert to fraction form
    11,707.87/17,561.81 = 2,942.79/x
  3. Step 3: Cross multiply
    11,707.87x = 17,561.81 × 2,942.79
  4. Step 4: Simplify right side
    11,707.87x = 51,680,718.85
  5. Step 5: Solve for x
    x = 51,680,718.85/11,707.87
  6. Step 6: Final answer
    x = 4,414.19

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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.