Home / 8,126.73-12,191.92-2,580.26

Finding the Fourth Proportional to 8,126.73, 12,191.92 and 2,580.26

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Solution

The fourth proportional to 8,126.73, 12,191.92 and 2,580.26 is: 3,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.73 : 12,191.92 = 2,580.26 : x
  2. Step 2: Convert to fraction form
    8,126.73/12,191.92 = 2,580.26/x
  3. Step 3: Cross multiply
    8,126.73x = 12,191.92 × 2,580.26
  4. Step 4: Simplify right side
    8,126.73x = 31,458,323.50
  5. Step 5: Solve for x
    x = 31,458,323.50/8,126.73
  6. Step 6: Final answer
    x = 3,870.97

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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.