Home / 12,729.96-19,091.25-5,334.21

Finding the Fourth Proportional to 12,729.96, 19,091.25 and 5,334.21

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Solution

The fourth proportional to 12,729.96, 19,091.25 and 5,334.21 is: 7,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.96 : 19,091.25 = 5,334.21 : x
  2. Step 2: Convert to fraction form
    12,729.96/19,091.25 = 5,334.21/x
  3. Step 3: Cross multiply
    12,729.96x = 19,091.25 × 5,334.21
  4. Step 4: Simplify right side
    12,729.96x = 101,836,736.66
  5. Step 5: Solve for x
    x = 101,836,736.66/12,729.96
  6. Step 6: Final answer
    x = 7,999.77

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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.