Home / 12,114.22-18,160.38-4,321.18

Finding the Fourth Proportional to 12,114.22, 18,160.38 and 4,321.18

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Solution

The fourth proportional to 12,114.22, 18,160.38 and 4,321.18 is: 6,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.22 : 18,160.38 = 4,321.18 : x
  2. Step 2: Convert to fraction form
    12,114.22/18,160.38 = 4,321.18/x
  3. Step 3: Cross multiply
    12,114.22x = 18,160.38 × 4,321.18
  4. Step 4: Simplify right side
    12,114.22x = 78,474,270.85
  5. Step 5: Solve for x
    x = 78,474,270.85/12,114.22
  6. Step 6: Final answer
    x = 6,477.86

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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.