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Finding the Fourth Proportional to 8,062.74, 12,028.62 and 7,626.78

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Solution

The fourth proportional to 8,062.74, 12,028.62 and 7,626.78 is: 11,378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.74 : 12,028.62 = 7,626.78 : x
  2. Step 2: Convert to fraction form
    8,062.74/12,028.62 = 7,626.78/x
  3. Step 3: Cross multiply
    8,062.74x = 12,028.62 × 7,626.78
  4. Step 4: Simplify right side
    8,062.74x = 91,739,638.44
  5. Step 5: Solve for x
    x = 91,739,638.44/8,062.74
  6. Step 6: Final answer
    x = 11,378.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.