Home / 12,622.14-18,930.57-4,302.09

Finding the Fourth Proportional to 12,622.14, 18,930.57 and 4,302.09

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Solution

The fourth proportional to 12,622.14, 18,930.57 and 4,302.09 is: 6,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.14 : 18,930.57 = 4,302.09 : x
  2. Step 2: Convert to fraction form
    12,622.14/18,930.57 = 4,302.09/x
  3. Step 3: Cross multiply
    12,622.14x = 18,930.57 × 4,302.09
  4. Step 4: Simplify right side
    12,622.14x = 81,441,015.89
  5. Step 5: Solve for x
    x = 81,441,015.89/12,622.14
  6. Step 6: Final answer
    x = 6,452.24

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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.