Home / 13,768.19-20,652.38-3,379.94

Finding the Fourth Proportional to 13,768.19, 20,652.38 and 3,379.94

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Solution

The fourth proportional to 13,768.19, 20,652.38 and 3,379.94 is: 5,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.19 : 20,652.38 = 3,379.94 : x
  2. Step 2: Convert to fraction form
    13,768.19/20,652.38 = 3,379.94/x
  3. Step 3: Cross multiply
    13,768.19x = 20,652.38 × 3,379.94
  4. Step 4: Simplify right side
    13,768.19x = 69,803,805.26
  5. Step 5: Solve for x
    x = 69,803,805.26/13,768.19
  6. Step 6: Final answer
    x = 5,069.93

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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.