Home / 18,181.50-25,090.77-11,893.88

Finding the Fourth Proportional to 18,181.50, 25,090.77 and 11,893.88

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Solution

The fourth proportional to 18,181.50, 25,090.77 and 11,893.88 is: 16,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.50 : 25,090.77 = 11,893.88 : x
  2. Step 2: Convert to fraction form
    18,181.50/25,090.77 = 11,893.88/x
  3. Step 3: Cross multiply
    18,181.50x = 25,090.77 × 11,893.88
  4. Step 4: Simplify right side
    18,181.50x = 298,426,526.64
  5. Step 5: Solve for x
    x = 298,426,526.64/18,181.50
  6. Step 6: Final answer
    x = 16,413.75

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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.