Home / 8,238.09-12,356.06-2,972.55

Finding the Fourth Proportional to 8,238.09, 12,356.06 and 2,972.55

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Solution

The fourth proportional to 8,238.09, 12,356.06 and 2,972.55 is: 4,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.09 : 12,356.06 = 2,972.55 : x
  2. Step 2: Convert to fraction form
    8,238.09/12,356.06 = 2,972.55/x
  3. Step 3: Cross multiply
    8,238.09x = 12,356.06 × 2,972.55
  4. Step 4: Simplify right side
    8,238.09x = 36,728,991.29
  5. Step 5: Solve for x
    x = 36,728,991.29/8,238.09
  6. Step 6: Final answer
    x = 4,458.44

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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.