Home / 13,723-18,937.77-7,435.37

Finding the Fourth Proportional to 13,723, 18,937.77 and 7,435.37

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Solution

The fourth proportional to 13,723, 18,937.77 and 7,435.37 is: 10,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723 : 18,937.77 = 7,435.37 : x
  2. Step 2: Convert to fraction form
    13,723/18,937.77 = 7,435.37/x
  3. Step 3: Cross multiply
    13,723x = 18,937.77 × 7,435.37
  4. Step 4: Simplify right side
    13,723x = 140,809,326.92
  5. Step 5: Solve for x
    x = 140,809,326.92/13,723
  6. Step 6: Final answer
    x = 10,260.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.