Home / 8,768.78-13,158.92-3,222.17

Finding the Fourth Proportional to 8,768.78, 13,158.92 and 3,222.17

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Solution

The fourth proportional to 8,768.78, 13,158.92 and 3,222.17 is: 4,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.78 : 13,158.92 = 3,222.17 : x
  2. Step 2: Convert to fraction form
    8,768.78/13,158.92 = 3,222.17/x
  3. Step 3: Cross multiply
    8,768.78x = 13,158.92 × 3,222.17
  4. Step 4: Simplify right side
    8,768.78x = 42,400,277.26
  5. Step 5: Solve for x
    x = 42,400,277.26/8,768.78
  6. Step 6: Final answer
    x = 4,835.37

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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.