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Finding the Fourth Proportional to 13,185.58, 18,197.78 and 8,652.08

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Solution

The fourth proportional to 13,185.58, 18,197.78 and 8,652.08 is: 11,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.58 : 18,197.78 = 8,652.08 : x
  2. Step 2: Convert to fraction form
    13,185.58/18,197.78 = 8,652.08/x
  3. Step 3: Cross multiply
    13,185.58x = 18,197.78 × 8,652.08
  4. Step 4: Simplify right side
    13,185.58x = 157,448,648.38
  5. Step 5: Solve for x
    x = 157,448,648.38/13,185.58
  6. Step 6: Final answer
    x = 11,940.97

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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.