Home / 8,075.69-12,112.85-2,231.75

Finding the Fourth Proportional to 8,075.69, 12,112.85 and 2,231.75

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Solution

The fourth proportional to 8,075.69, 12,112.85 and 2,231.75 is: 3,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.69 : 12,112.85 = 2,231.75 : x
  2. Step 2: Convert to fraction form
    8,075.69/12,112.85 = 2,231.75/x
  3. Step 3: Cross multiply
    8,075.69x = 12,112.85 × 2,231.75
  4. Step 4: Simplify right side
    8,075.69x = 27,032,841.83
  5. Step 5: Solve for x
    x = 27,032,841.83/8,075.69
  6. Step 6: Final answer
    x = 3,347.43

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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.