Home / 13,485.82-18,609.99-8,452.75

Finding the Fourth Proportional to 13,485.82, 18,609.99 and 8,452.75

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Solution

The fourth proportional to 13,485.82, 18,609.99 and 8,452.75 is: 11,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.82 : 18,609.99 = 8,452.75 : x
  2. Step 2: Convert to fraction form
    13,485.82/18,609.99 = 8,452.75/x
  3. Step 3: Cross multiply
    13,485.82x = 18,609.99 × 8,452.75
  4. Step 4: Simplify right side
    13,485.82x = 157,305,592.97
  5. Step 5: Solve for x
    x = 157,305,592.97/13,485.82
  6. Step 6: Final answer
    x = 11,664.52

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Double scale
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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.