Home / 13,231.20-19,830.60-5,827.80

Finding the Fourth Proportional to 13,231.20, 19,830.60 and 5,827.80

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Solution

The fourth proportional to 13,231.20, 19,830.60 and 5,827.80 is: 8,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.20 : 19,830.60 = 5,827.80 : x
  2. Step 2: Convert to fraction form
    13,231.20/19,830.60 = 5,827.80/x
  3. Step 3: Cross multiply
    13,231.20x = 19,830.60 × 5,827.80
  4. Step 4: Simplify right side
    13,231.20x = 115,568,770.68
  5. Step 5: Solve for x
    x = 115,568,770.68/13,231.20
  6. Step 6: Final answer
    x = 8,734.56

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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.