Home / 8,126.77-12,190.57-2,580.55

Finding the Fourth Proportional to 8,126.77, 12,190.57 and 2,580.55

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Solution

The fourth proportional to 8,126.77, 12,190.57 and 2,580.55 is: 3,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.77 : 12,190.57 = 2,580.55 : x
  2. Step 2: Convert to fraction form
    8,126.77/12,190.57 = 2,580.55/x
  3. Step 3: Cross multiply
    8,126.77x = 12,190.57 × 2,580.55
  4. Step 4: Simplify right side
    8,126.77x = 31,458,339.38
  5. Step 5: Solve for x
    x = 31,458,339.38/8,126.77
  6. Step 6: Final answer
    x = 3,870.95

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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.