Home / 13,739.82-20,602.38-4,377.30

Finding the Fourth Proportional to 13,739.82, 20,602.38 and 4,377.30

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Solution

The fourth proportional to 13,739.82, 20,602.38 and 4,377.30 is: 6,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.82 : 20,602.38 = 4,377.30 : x
  2. Step 2: Convert to fraction form
    13,739.82/20,602.38 = 4,377.30/x
  3. Step 3: Cross multiply
    13,739.82x = 20,602.38 × 4,377.30
  4. Step 4: Simplify right side
    13,739.82x = 90,182,797.97
  5. Step 5: Solve for x
    x = 90,182,797.97/13,739.82
  6. Step 6: Final answer
    x = 6,563.61

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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.