Home / 13,619.85-18,795.96-7,651.41

Finding the Fourth Proportional to 13,619.85, 18,795.96 and 7,651.41

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Solution

The fourth proportional to 13,619.85, 18,795.96 and 7,651.41 is: 10,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.85 : 18,795.96 = 7,651.41 : x
  2. Step 2: Convert to fraction form
    13,619.85/18,795.96 = 7,651.41/x
  3. Step 3: Cross multiply
    13,619.85x = 18,795.96 × 7,651.41
  4. Step 4: Simplify right side
    13,619.85x = 143,815,596.30
  5. Step 5: Solve for x
    x = 143,815,596.30/13,619.85
  6. Step 6: Final answer
    x = 10,559.26

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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.