Home / 11,918.77-17,872.93-4,019.81

Finding the Fourth Proportional to 11,918.77, 17,872.93 and 4,019.81

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Solution

The fourth proportional to 11,918.77, 17,872.93 and 4,019.81 is: 6,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.77 : 17,872.93 = 4,019.81 : x
  2. Step 2: Convert to fraction form
    11,918.77/17,872.93 = 4,019.81/x
  3. Step 3: Cross multiply
    11,918.77x = 17,872.93 × 4,019.81
  4. Step 4: Simplify right side
    11,918.77x = 71,845,782.74
  5. Step 5: Solve for x
    x = 71,845,782.74/11,918.77
  6. Step 6: Final answer
    x = 6,027.95

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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.