Home / 12,622.29-18,935.86-3,858.49

Finding the Fourth Proportional to 12,622.29, 18,935.86 and 3,858.49

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Solution

The fourth proportional to 12,622.29, 18,935.86 and 3,858.49 is: 5,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.29 : 18,935.86 = 3,858.49 : x
  2. Step 2: Convert to fraction form
    12,622.29/18,935.86 = 3,858.49/x
  3. Step 3: Cross multiply
    12,622.29x = 18,935.86 × 3,858.49
  4. Step 4: Simplify right side
    12,622.29x = 73,063,826.45
  5. Step 5: Solve for x
    x = 73,063,826.45/12,622.29
  6. Step 6: Final answer
    x = 5,788.48

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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.