Home / 13,268.61-19,900.68-3,780.26

Finding the Fourth Proportional to 13,268.61, 19,900.68 and 3,780.26

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Solution

The fourth proportional to 13,268.61, 19,900.68 and 3,780.26 is: 5,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.61 : 19,900.68 = 3,780.26 : x
  2. Step 2: Convert to fraction form
    13,268.61/19,900.68 = 3,780.26/x
  3. Step 3: Cross multiply
    13,268.61x = 19,900.68 × 3,780.26
  4. Step 4: Simplify right side
    13,268.61x = 75,229,705.52
  5. Step 5: Solve for x
    x = 75,229,705.52/13,268.61
  6. Step 6: Final answer
    x = 5,669.75

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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.