Home / 18,971.64-26,193.82-12,273.48

Finding the Fourth Proportional to 18,971.64, 26,193.82 and 12,273.48

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Solution

The fourth proportional to 18,971.64, 26,193.82 and 12,273.48 is: 16,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.64 : 26,193.82 = 12,273.48 : x
  2. Step 2: Convert to fraction form
    18,971.64/26,193.82 = 12,273.48/x
  3. Step 3: Cross multiply
    18,971.64x = 26,193.82 × 12,273.48
  4. Step 4: Simplify right side
    18,971.64x = 321,489,325.89
  5. Step 5: Solve for x
    x = 321,489,325.89/18,971.64
  6. Step 6: Final answer
    x = 16,945.78

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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.