Home / 7,305.21-10,965.60-3,147.26

Finding the Fourth Proportional to 7,305.21, 10,965.60 and 3,147.26

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Solution

The fourth proportional to 7,305.21, 10,965.60 and 3,147.26 is: 4,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.21 : 10,965.60 = 3,147.26 : x
  2. Step 2: Convert to fraction form
    7,305.21/10,965.60 = 3,147.26/x
  3. Step 3: Cross multiply
    7,305.21x = 10,965.60 × 3,147.26
  4. Step 4: Simplify right side
    7,305.21x = 34,511,539.43
  5. Step 5: Solve for x
    x = 34,511,539.43/7,305.21
  6. Step 6: Final answer
    x = 4,724.24

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1.5x scale

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.