Home / 13,212.08-19,817.94-3,216.87

Finding the Fourth Proportional to 13,212.08, 19,817.94 and 3,216.87

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Solution

The fourth proportional to 13,212.08, 19,817.94 and 3,216.87 is: 4,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.08 : 19,817.94 = 3,216.87 : x
  2. Step 2: Convert to fraction form
    13,212.08/19,817.94 = 3,216.87/x
  3. Step 3: Cross multiply
    13,212.08x = 19,817.94 × 3,216.87
  4. Step 4: Simplify right side
    13,212.08x = 63,751,736.65
  5. Step 5: Solve for x
    x = 63,751,736.65/13,212.08
  6. Step 6: Final answer
    x = 4,825.26

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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.