Home / 12,626.45-18,941.80-3,859.31

Finding the Fourth Proportional to 12,626.45, 18,941.80 and 3,859.31

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Solution

The fourth proportional to 12,626.45, 18,941.80 and 3,859.31 is: 5,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.45 : 18,941.80 = 3,859.31 : x
  2. Step 2: Convert to fraction form
    12,626.45/18,941.80 = 3,859.31/x
  3. Step 3: Cross multiply
    12,626.45x = 18,941.80 × 3,859.31
  4. Step 4: Simplify right side
    12,626.45x = 73,102,323.10
  5. Step 5: Solve for x
    x = 73,102,323.10/12,626.45
  6. Step 6: Final answer
    x = 5,789.62

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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.