Home / 12,622.91-18,937.08-3,858.48

Finding the Fourth Proportional to 12,622.91, 18,937.08 and 3,858.48

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Solution

The fourth proportional to 12,622.91, 18,937.08 and 3,858.48 is: 5,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.91 : 18,937.08 = 3,858.48 : x
  2. Step 2: Convert to fraction form
    12,622.91/18,937.08 = 3,858.48/x
  3. Step 3: Cross multiply
    12,622.91x = 18,937.08 × 3,858.48
  4. Step 4: Simplify right side
    12,622.91x = 73,068,344.44
  5. Step 5: Solve for x
    x = 73,068,344.44/12,622.91
  6. Step 6: Final answer
    x = 5,788.55

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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.