Home / 6,515.23-9,765.96-2,131.51

Finding the Fourth Proportional to 6,515.23, 9,765.96 and 2,131.51

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Solution

The fourth proportional to 6,515.23, 9,765.96 and 2,131.51 is: 3,195.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.23 : 9,765.96 = 2,131.51 : x
  2. Step 2: Convert to fraction form
    6,515.23/9,765.96 = 2,131.51/x
  3. Step 3: Cross multiply
    6,515.23x = 9,765.96 × 2,131.51
  4. Step 4: Simplify right side
    6,515.23x = 20,816,241.40
  5. Step 5: Solve for x
    x = 20,816,241.40/6,515.23
  6. Step 6: Final answer
    x = 3,195.01

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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.