Home / 11,919.80-17,875.74-4,020.18

Finding the Fourth Proportional to 11,919.80, 17,875.74 and 4,020.18

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Solution

The fourth proportional to 11,919.80, 17,875.74 and 4,020.18 is: 6,028.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.80 : 17,875.74 = 4,020.18 : x
  2. Step 2: Convert to fraction form
    11,919.80/17,875.74 = 4,020.18/x
  3. Step 3: Cross multiply
    11,919.80x = 17,875.74 × 4,020.18
  4. Step 4: Simplify right side
    11,919.80x = 71,863,692.43
  5. Step 5: Solve for x
    x = 71,863,692.43/11,919.80
  6. Step 6: Final answer
    x = 6,028.94

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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.