Home / 12,201.21-18,304.26-5,181.17

Finding the Fourth Proportional to 12,201.21, 18,304.26 and 5,181.17

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Solution

The fourth proportional to 12,201.21, 18,304.26 and 5,181.17 is: 7,772.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.21 : 18,304.26 = 5,181.17 : x
  2. Step 2: Convert to fraction form
    12,201.21/18,304.26 = 5,181.17/x
  3. Step 3: Cross multiply
    12,201.21x = 18,304.26 × 5,181.17
  4. Step 4: Simplify right side
    12,201.21x = 94,837,503.94
  5. Step 5: Solve for x
    x = 94,837,503.94/12,201.21
  6. Step 6: Final answer
    x = 7,772.79

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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.