Home / 12,418.18-18,630.36-6,181.18

Finding the Fourth Proportional to 12,418.18, 18,630.36 and 6,181.18

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Solution

The fourth proportional to 12,418.18, 18,630.36 and 6,181.18 is: 9,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.18 : 18,630.36 = 6,181.18 : x
  2. Step 2: Convert to fraction form
    12,418.18/18,630.36 = 6,181.18/x
  3. Step 3: Cross multiply
    12,418.18x = 18,630.36 × 6,181.18
  4. Step 4: Simplify right side
    12,418.18x = 115,157,608.62
  5. Step 5: Solve for x
    x = 115,157,608.62/12,418.18
  6. Step 6: Final answer
    x = 9,273.31

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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.