Home / 12,736.24-19,101.60-3,968.80

Finding the Fourth Proportional to 12,736.24, 19,101.60 and 3,968.80

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Solution

The fourth proportional to 12,736.24, 19,101.60 and 3,968.80 is: 5,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.24 : 19,101.60 = 3,968.80 : x
  2. Step 2: Convert to fraction form
    12,736.24/19,101.60 = 3,968.80/x
  3. Step 3: Cross multiply
    12,736.24x = 19,101.60 × 3,968.80
  4. Step 4: Simplify right side
    12,736.24x = 75,810,430.08
  5. Step 5: Solve for x
    x = 75,810,430.08/12,736.24
  6. Step 6: Final answer
    x = 5,952.34

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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.