Home / 12,129.96-18,183.47-5,552.22

Finding the Fourth Proportional to 12,129.96, 18,183.47 and 5,552.22

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Solution

The fourth proportional to 12,129.96, 18,183.47 and 5,552.22 is: 8,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.96 : 18,183.47 = 5,552.22 : x
  2. Step 2: Convert to fraction form
    12,129.96/18,183.47 = 5,552.22/x
  3. Step 3: Cross multiply
    12,129.96x = 18,183.47 × 5,552.22
  4. Step 4: Simplify right side
    12,129.96x = 100,958,598.04
  5. Step 5: Solve for x
    x = 100,958,598.04/12,129.96
  6. Step 6: Final answer
    x = 8,323.08

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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.