Home / 8,072.68-12,110.40-3,690.56

Finding the Fourth Proportional to 8,072.68, 12,110.40 and 3,690.56

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Solution

The fourth proportional to 8,072.68, 12,110.40 and 3,690.56 is: 5,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.68 : 12,110.40 = 3,690.56 : x
  2. Step 2: Convert to fraction form
    8,072.68/12,110.40 = 3,690.56/x
  3. Step 3: Cross multiply
    8,072.68x = 12,110.40 × 3,690.56
  4. Step 4: Simplify right side
    8,072.68x = 44,694,157.82
  5. Step 5: Solve for x
    x = 44,694,157.82/8,072.68
  6. Step 6: Final answer
    x = 5,536.47

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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.