Home / 8,075.13-12,112.67-2,231.72

Finding the Fourth Proportional to 8,075.13, 12,112.67 and 2,231.72

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Solution

The fourth proportional to 8,075.13, 12,112.67 and 2,231.72 is: 3,347.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.13 : 12,112.67 = 2,231.72 : x
  2. Step 2: Convert to fraction form
    8,075.13/12,112.67 = 2,231.72/x
  3. Step 3: Cross multiply
    8,075.13x = 12,112.67 × 2,231.72
  4. Step 4: Simplify right side
    8,075.13x = 27,032,078.33
  5. Step 5: Solve for x
    x = 27,032,078.33/8,075.13
  6. Step 6: Final answer
    x = 3,347.57

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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.