Home / 18,645.15-28,004.76-11,163.18

Finding the Fourth Proportional to 18,645.15, 28,004.76 and 11,163.18

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Solution

The fourth proportional to 18,645.15, 28,004.76 and 11,163.18 is: 16,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.15 : 28,004.76 = 11,163.18 : x
  2. Step 2: Convert to fraction form
    18,645.15/28,004.76 = 11,163.18/x
  3. Step 3: Cross multiply
    18,645.15x = 28,004.76 × 11,163.18
  4. Step 4: Simplify right side
    18,645.15x = 312,622,176.74
  5. Step 5: Solve for x
    x = 312,622,176.74/18,645.15
  6. Step 6: Final answer
    x = 16,766.94

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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.