Home / 12,122.36-18,181.47-3,355.22

Finding the Fourth Proportional to 12,122.36, 18,181.47 and 3,355.22

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Solution

The fourth proportional to 12,122.36, 18,181.47 and 3,355.22 is: 5,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.36 : 18,181.47 = 3,355.22 : x
  2. Step 2: Convert to fraction form
    12,122.36/18,181.47 = 3,355.22/x
  3. Step 3: Cross multiply
    12,122.36x = 18,181.47 × 3,355.22
  4. Step 4: Simplify right side
    12,122.36x = 61,002,740.87
  5. Step 5: Solve for x
    x = 61,002,740.87/12,122.36
  6. Step 6: Final answer
    x = 5,032.25

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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.