Home / 12,145.75-18,212.39-5,566.22

Finding the Fourth Proportional to 12,145.75, 18,212.39 and 5,566.22

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Solution

The fourth proportional to 12,145.75, 18,212.39 and 5,566.22 is: 8,346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.75 : 18,212.39 = 5,566.22 : x
  2. Step 2: Convert to fraction form
    12,145.75/18,212.39 = 5,566.22/x
  3. Step 3: Cross multiply
    12,145.75x = 18,212.39 × 5,566.22
  4. Step 4: Simplify right side
    12,145.75x = 101,374,171.05
  5. Step 5: Solve for x
    x = 101,374,171.05/12,145.75
  6. Step 6: Final answer
    x = 8,346.47

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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.