Home / 8,126.46-12,190.32-2,580.12

Finding the Fourth Proportional to 8,126.46, 12,190.32 and 2,580.12

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Solution

The fourth proportional to 8,126.46, 12,190.32 and 2,580.12 is: 3,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.46 : 12,190.32 = 2,580.12 : x
  2. Step 2: Convert to fraction form
    8,126.46/12,190.32 = 2,580.12/x
  3. Step 3: Cross multiply
    8,126.46x = 12,190.32 × 2,580.12
  4. Step 4: Simplify right side
    8,126.46x = 31,452,488.44
  5. Step 5: Solve for x
    x = 31,452,488.44/8,126.46
  6. Step 6: Final answer
    x = 3,870.38

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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.