Home / 12,622.35-18,933.56-3,857.22

Finding the Fourth Proportional to 12,622.35, 18,933.56 and 3,857.22

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Solution

The fourth proportional to 12,622.35, 18,933.56 and 3,857.22 is: 5,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.35 : 18,933.56 = 3,857.22 : x
  2. Step 2: Convert to fraction form
    12,622.35/18,933.56 = 3,857.22/x
  3. Step 3: Cross multiply
    12,622.35x = 18,933.56 × 3,857.22
  4. Step 4: Simplify right side
    12,622.35x = 73,030,963.28
  5. Step 5: Solve for x
    x = 73,030,963.28/12,622.35
  6. Step 6: Final answer
    x = 5,785.85

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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.