Home / 8,126.82-12,190.23-2,860.59

Finding the Fourth Proportional to 8,126.82, 12,190.23 and 2,860.59

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Solution

The fourth proportional to 8,126.82, 12,190.23 and 2,860.59 is: 4,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.82 : 12,190.23 = 2,860.59 : x
  2. Step 2: Convert to fraction form
    8,126.82/12,190.23 = 2,860.59/x
  3. Step 3: Cross multiply
    8,126.82x = 12,190.23 × 2,860.59
  4. Step 4: Simplify right side
    8,126.82x = 34,871,250.04
  5. Step 5: Solve for x
    x = 34,871,250.04/8,126.82
  6. Step 6: Final answer
    x = 4,290.89

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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.