Home / 12,201.48-18,317.34-12,145.32

Finding the Fourth Proportional to 12,201.48, 18,317.34 and 12,145.32

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Solution

The fourth proportional to 12,201.48, 18,317.34 and 12,145.32 is: 18,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.48 : 18,317.34 = 12,145.32 : x
  2. Step 2: Convert to fraction form
    12,201.48/18,317.34 = 12,145.32/x
  3. Step 3: Cross multiply
    12,201.48x = 18,317.34 × 12,145.32
  4. Step 4: Simplify right side
    12,201.48x = 222,469,955.85
  5. Step 5: Solve for x
    x = 222,469,955.85/12,201.48
  6. Step 6: Final answer
    x = 18,233.03

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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.