Home / 12,768.22-19,112.73-6,910.30

Finding the Fourth Proportional to 12,768.22, 19,112.73 and 6,910.30

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Solution

The fourth proportional to 12,768.22, 19,112.73 and 6,910.30 is: 10,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.22 : 19,112.73 = 6,910.30 : x
  2. Step 2: Convert to fraction form
    12,768.22/19,112.73 = 6,910.30/x
  3. Step 3: Cross multiply
    12,768.22x = 19,112.73 × 6,910.30
  4. Step 4: Simplify right side
    12,768.22x = 132,074,698.12
  5. Step 5: Solve for x
    x = 132,074,698.12/12,768.22
  6. Step 6: Final answer
    x = 10,344.02

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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.