Home / 11,902.80-17,837.10-6,697.68

Finding the Fourth Proportional to 11,902.80, 17,837.10 and 6,697.68

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Solution

The fourth proportional to 11,902.80, 17,837.10 and 6,697.68 is: 10,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.80 : 17,837.10 = 6,697.68 : x
  2. Step 2: Convert to fraction form
    11,902.80/17,837.10 = 6,697.68/x
  3. Step 3: Cross multiply
    11,902.80x = 17,837.10 × 6,697.68
  4. Step 4: Simplify right side
    11,902.80x = 119,467,187.93
  5. Step 5: Solve for x
    x = 119,467,187.93/11,902.80
  6. Step 6: Final answer
    x = 10,036.90

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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.