Home / 8,075.21-12,111.45-2,231.84

Finding the Fourth Proportional to 8,075.21, 12,111.45 and 2,231.84

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Solution

The fourth proportional to 8,075.21, 12,111.45 and 2,231.84 is: 3,347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.21 : 12,111.45 = 2,231.84 : x
  2. Step 2: Convert to fraction form
    8,075.21/12,111.45 = 2,231.84/x
  3. Step 3: Cross multiply
    8,075.21x = 12,111.45 × 2,231.84
  4. Step 4: Simplify right side
    8,075.21x = 27,030,758.01
  5. Step 5: Solve for x
    x = 27,030,758.01/8,075.21
  6. Step 6: Final answer
    x = 3,347.38

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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.