Home / 8,075.10-12,112.62-2,231.70

Finding the Fourth Proportional to 8,075.10, 12,112.62 and 2,231.70

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Solution

The fourth proportional to 8,075.10, 12,112.62 and 2,231.70 is: 3,347.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.10 : 12,112.62 = 2,231.70 : x
  2. Step 2: Convert to fraction form
    8,075.10/12,112.62 = 2,231.70/x
  3. Step 3: Cross multiply
    8,075.10x = 12,112.62 × 2,231.70
  4. Step 4: Simplify right side
    8,075.10x = 27,031,734.05
  5. Step 5: Solve for x
    x = 27,031,734.05/8,075.10
  6. Step 6: Final answer
    x = 3,347.54

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1.5x scale

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.