Home / 13,197.83-18,212.96-7,229.61

Finding the Fourth Proportional to 13,197.83, 18,212.96 and 7,229.61

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Solution

The fourth proportional to 13,197.83, 18,212.96 and 7,229.61 is: 9,976.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.83 : 18,212.96 = 7,229.61 : x
  2. Step 2: Convert to fraction form
    13,197.83/18,212.96 = 7,229.61/x
  3. Step 3: Cross multiply
    13,197.83x = 18,212.96 × 7,229.61
  4. Step 4: Simplify right side
    13,197.83x = 131,672,561.60
  5. Step 5: Solve for x
    x = 131,672,561.60/13,197.83
  6. Step 6: Final answer
    x = 9,976.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.