Home / 13,190.82-19,796.26-4,878.70

Finding the Fourth Proportional to 13,190.82, 19,796.26 and 4,878.70

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Solution

The fourth proportional to 13,190.82, 19,796.26 and 4,878.70 is: 7,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.82 : 19,796.26 = 4,878.70 : x
  2. Step 2: Convert to fraction form
    13,190.82/19,796.26 = 4,878.70/x
  3. Step 3: Cross multiply
    13,190.82x = 19,796.26 × 4,878.70
  4. Step 4: Simplify right side
    13,190.82x = 96,580,013.66
  5. Step 5: Solve for x
    x = 96,580,013.66/13,190.82
  6. Step 6: Final answer
    x = 7,321.76

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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.