Home / 13,458.42-20,198.21-9,327.47

Finding the Fourth Proportional to 13,458.42, 20,198.21 and 9,327.47

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Solution

The fourth proportional to 13,458.42, 20,198.21 and 9,327.47 is: 13,998.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.42 : 20,198.21 = 9,327.47 : x
  2. Step 2: Convert to fraction form
    13,458.42/20,198.21 = 9,327.47/x
  3. Step 3: Cross multiply
    13,458.42x = 20,198.21 × 9,327.47
  4. Step 4: Simplify right side
    13,458.42x = 188,398,216.28
  5. Step 5: Solve for x
    x = 188,398,216.28/13,458.42
  6. Step 6: Final answer
    x = 13,998.54

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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.