Home / 12,806.91-19,208.21-3,570.75

Finding the Fourth Proportional to 12,806.91, 19,208.21 and 3,570.75

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Solution

The fourth proportional to 12,806.91, 19,208.21 and 3,570.75 is: 5,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.91 : 19,208.21 = 3,570.75 : x
  2. Step 2: Convert to fraction form
    12,806.91/19,208.21 = 3,570.75/x
  3. Step 3: Cross multiply
    12,806.91x = 19,208.21 × 3,570.75
  4. Step 4: Simplify right side
    12,806.91x = 68,587,698.00
  5. Step 5: Solve for x
    x = 68,587,698.00/12,806.91
  6. Step 6: Final answer
    x = 5,355.52

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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.