Home / 13,540.54-20,259.78-7,996.90

Finding the Fourth Proportional to 13,540.54, 20,259.78 and 7,996.90

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Solution

The fourth proportional to 13,540.54, 20,259.78 and 7,996.90 is: 11,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.54 : 20,259.78 = 7,996.90 : x
  2. Step 2: Convert to fraction form
    13,540.54/20,259.78 = 7,996.90/x
  3. Step 3: Cross multiply
    13,540.54x = 20,259.78 × 7,996.90
  4. Step 4: Simplify right side
    13,540.54x = 162,015,434.68
  5. Step 5: Solve for x
    x = 162,015,434.68/13,540.54
  6. Step 6: Final answer
    x = 11,965.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.