Home / 12,775.07-19,163.49-3,415.04

Finding the Fourth Proportional to 12,775.07, 19,163.49 and 3,415.04

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Solution

The fourth proportional to 12,775.07, 19,163.49 and 3,415.04 is: 5,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.07 : 19,163.49 = 3,415.04 : x
  2. Step 2: Convert to fraction form
    12,775.07/19,163.49 = 3,415.04/x
  3. Step 3: Cross multiply
    12,775.07x = 19,163.49 × 3,415.04
  4. Step 4: Simplify right side
    12,775.07x = 65,443,989.07
  5. Step 5: Solve for x
    x = 65,443,989.07/12,775.07
  6. Step 6: Final answer
    x = 5,122.79

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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.