Home / 12,110.62-18,166.07-3,790.30

Finding the Fourth Proportional to 12,110.62, 18,166.07 and 3,790.30

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Solution

The fourth proportional to 12,110.62, 18,166.07 and 3,790.30 is: 5,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.62 : 18,166.07 = 3,790.30 : x
  2. Step 2: Convert to fraction form
    12,110.62/18,166.07 = 3,790.30/x
  3. Step 3: Cross multiply
    12,110.62x = 18,166.07 × 3,790.30
  4. Step 4: Simplify right side
    12,110.62x = 68,854,855.12
  5. Step 5: Solve for x
    x = 68,854,855.12/12,110.62
  6. Step 6: Final answer
    x = 5,685.49

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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.