Home / 8,075.22-12,112.83-3,691.50

Finding the Fourth Proportional to 8,075.22, 12,112.83 and 3,691.50

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Solution

The fourth proportional to 8,075.22, 12,112.83 and 3,691.50 is: 5,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.22 : 12,112.83 = 3,691.50 : x
  2. Step 2: Convert to fraction form
    8,075.22/12,112.83 = 3,691.50/x
  3. Step 3: Cross multiply
    8,075.22x = 12,112.83 × 3,691.50
  4. Step 4: Simplify right side
    8,075.22x = 44,714,511.95
  5. Step 5: Solve for x
    x = 44,714,511.95/8,075.22
  6. Step 6: Final answer
    x = 5,537.25

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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.