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Finding the Fourth Proportional to 10,163.80, 15,223.02 and 8,608.60

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Solution

The fourth proportional to 10,163.80, 15,223.02 and 8,608.60 is: 12,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,163.80 : 15,223.02 = 8,608.60 : x
  2. Step 2: Convert to fraction form
    10,163.80/15,223.02 = 8,608.60/x
  3. Step 3: Cross multiply
    10,163.80x = 15,223.02 × 8,608.60
  4. Step 4: Simplify right side
    10,163.80x = 131,048,889.97
  5. Step 5: Solve for x
    x = 131,048,889.97/10,163.80
  6. Step 6: Final answer
    x = 12,893.69

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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.