Home / 13,622.32-18,796.92-7,958.96

Finding the Fourth Proportional to 13,622.32, 18,796.92 and 7,958.96

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Solution

The fourth proportional to 13,622.32, 18,796.92 and 7,958.96 is: 10,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.32 : 18,796.92 = 7,958.96 : x
  2. Step 2: Convert to fraction form
    13,622.32/18,796.92 = 7,958.96/x
  3. Step 3: Cross multiply
    13,622.32x = 18,796.92 × 7,958.96
  4. Step 4: Simplify right side
    13,622.32x = 149,603,934.40
  5. Step 5: Solve for x
    x = 149,603,934.40/13,622.32
  6. Step 6: Final answer
    x = 10,982.27

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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.