Home / 13,212.75-19,805.16-4,887.42

Finding the Fourth Proportional to 13,212.75, 19,805.16 and 4,887.42

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Solution

The fourth proportional to 13,212.75, 19,805.16 and 4,887.42 is: 7,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.75 : 19,805.16 = 4,887.42 : x
  2. Step 2: Convert to fraction form
    13,212.75/19,805.16 = 4,887.42/x
  3. Step 3: Cross multiply
    13,212.75x = 19,805.16 × 4,887.42
  4. Step 4: Simplify right side
    13,212.75x = 96,796,135.09
  5. Step 5: Solve for x
    x = 96,796,135.09/13,212.75
  6. Step 6: Final answer
    x = 7,325.96

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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.