Home / 12,122.48-18,181.66-3,355.34

Finding the Fourth Proportional to 12,122.48, 18,181.66 and 3,355.34

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Solution

The fourth proportional to 12,122.48, 18,181.66 and 3,355.34 is: 5,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.48 : 18,181.66 = 3,355.34 : x
  2. Step 2: Convert to fraction form
    12,122.48/18,181.66 = 3,355.34/x
  3. Step 3: Cross multiply
    12,122.48x = 18,181.66 × 3,355.34
  4. Step 4: Simplify right side
    12,122.48x = 61,005,651.06
  5. Step 5: Solve for x
    x = 61,005,651.06/12,122.48
  6. Step 6: Final answer
    x = 5,032.44

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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.