Home / 10,200.60-15,272.10-9,163.80

Finding the Fourth Proportional to 10,200.60, 15,272.10 and 9,163.80

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Solution

The fourth proportional to 10,200.60, 15,272.10 and 9,163.80 is: 13,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.60 : 15,272.10 = 9,163.80 : x
  2. Step 2: Convert to fraction form
    10,200.60/15,272.10 = 9,163.80/x
  3. Step 3: Cross multiply
    10,200.60x = 15,272.10 × 9,163.80
  4. Step 4: Simplify right side
    10,200.60x = 139,950,469.98
  5. Step 5: Solve for x
    x = 139,950,469.98/10,200.60
  6. Step 6: Final answer
    x = 13,719.83

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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.