Home / 19,163.28-28,696.78-12,122.06

Finding the Fourth Proportional to 19,163.28, 28,696.78 and 12,122.06

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Solution

The fourth proportional to 19,163.28, 28,696.78 and 12,122.06 is: 18,152.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.28 : 28,696.78 = 12,122.06 : x
  2. Step 2: Convert to fraction form
    19,163.28/28,696.78 = 12,122.06/x
  3. Step 3: Cross multiply
    19,163.28x = 28,696.78 × 12,122.06
  4. Step 4: Simplify right side
    19,163.28x = 347,863,960.64
  5. Step 5: Solve for x
    x = 347,863,960.64/19,163.28
  6. Step 6: Final answer
    x = 18,152.63

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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.