Home / 12,122.12-18,172.46-4,219.16

Finding the Fourth Proportional to 12,122.12, 18,172.46 and 4,219.16

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Solution

The fourth proportional to 12,122.12, 18,172.46 and 4,219.16 is: 6,325.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.12 : 18,172.46 = 4,219.16 : x
  2. Step 2: Convert to fraction form
    12,122.12/18,172.46 = 4,219.16/x
  3. Step 3: Cross multiply
    12,122.12x = 18,172.46 × 4,219.16
  4. Step 4: Simplify right side
    12,122.12x = 76,672,516.33
  5. Step 5: Solve for x
    x = 76,672,516.33/12,122.12
  6. Step 6: Final answer
    x = 6,325.01

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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.