Home / 13,134.96-18,114.44-8,418.33

Finding the Fourth Proportional to 13,134.96, 18,114.44 and 8,418.33

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Solution

The fourth proportional to 13,134.96, 18,114.44 and 8,418.33 is: 11,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.96 : 18,114.44 = 8,418.33 : x
  2. Step 2: Convert to fraction form
    13,134.96/18,114.44 = 8,418.33/x
  3. Step 3: Cross multiply
    13,134.96x = 18,114.44 × 8,418.33
  4. Step 4: Simplify right side
    13,134.96x = 152,493,291.59
  5. Step 5: Solve for x
    x = 152,493,291.59/13,134.96
  6. Step 6: Final answer
    x = 11,609.73

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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.