Home / 11,900.82-17,849.51-3,135.74

Finding the Fourth Proportional to 11,900.82, 17,849.51 and 3,135.74

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Solution

The fourth proportional to 11,900.82, 17,849.51 and 3,135.74 is: 4,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.82 : 17,849.51 = 3,135.74 : x
  2. Step 2: Convert to fraction form
    11,900.82/17,849.51 = 3,135.74/x
  3. Step 3: Cross multiply
    11,900.82x = 17,849.51 × 3,135.74
  4. Step 4: Simplify right side
    11,900.82x = 55,971,317.56
  5. Step 5: Solve for x
    x = 55,971,317.56/11,900.82
  6. Step 6: Final answer
    x = 4,703.15

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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.