Home / 11,808.30-17,712.15-4,786.43

Finding the Fourth Proportional to 11,808.30, 17,712.15 and 4,786.43

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Solution

The fourth proportional to 11,808.30, 17,712.15 and 4,786.43 is: 7,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.30 : 17,712.15 = 4,786.43 : x
  2. Step 2: Convert to fraction form
    11,808.30/17,712.15 = 4,786.43/x
  3. Step 3: Cross multiply
    11,808.30x = 17,712.15 × 4,786.43
  4. Step 4: Simplify right side
    11,808.30x = 84,778,035.98
  5. Step 5: Solve for x
    x = 84,778,035.98/11,808.30
  6. Step 6: Final answer
    x = 7,179.53

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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.