Home / 8,108.04-12,163.32-3,428.07

Finding the Fourth Proportional to 8,108.04, 12,163.32 and 3,428.07

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Solution

The fourth proportional to 8,108.04, 12,163.32 and 3,428.07 is: 5,142.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.04 : 12,163.32 = 3,428.07 : x
  2. Step 2: Convert to fraction form
    8,108.04/12,163.32 = 3,428.07/x
  3. Step 3: Cross multiply
    8,108.04x = 12,163.32 × 3,428.07
  4. Step 4: Simplify right side
    8,108.04x = 41,696,712.39
  5. Step 5: Solve for x
    x = 41,696,712.39/8,108.04
  6. Step 6: Final answer
    x = 5,142.64

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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.