Home / 11,571.79-17,357.51-2,806.78

Finding the Fourth Proportional to 11,571.79, 17,357.51 and 2,806.78

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Solution

The fourth proportional to 11,571.79, 17,357.51 and 2,806.78 is: 4,210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,571.79 : 17,357.51 = 2,806.78 : x
  2. Step 2: Convert to fraction form
    11,571.79/17,357.51 = 2,806.78/x
  3. Step 3: Cross multiply
    11,571.79x = 17,357.51 × 2,806.78
  4. Step 4: Simplify right side
    11,571.79x = 48,718,611.10
  5. Step 5: Solve for x
    x = 48,718,611.10/11,571.79
  6. Step 6: Final answer
    x = 4,210.12

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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.