Home / 6,500.20-8,969.94-3,986.56

Finding the Fourth Proportional to 6,500.20, 8,969.94 and 3,986.56

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Solution

The fourth proportional to 6,500.20, 8,969.94 and 3,986.56 is: 5,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,500.20 : 8,969.94 = 3,986.56 : x
  2. Step 2: Convert to fraction form
    6,500.20/8,969.94 = 3,986.56/x
  3. Step 3: Cross multiply
    6,500.20x = 8,969.94 × 3,986.56
  4. Step 4: Simplify right side
    6,500.20x = 35,759,204.01
  5. Step 5: Solve for x
    x = 35,759,204.01/6,500.20
  6. Step 6: Final answer
    x = 5,501.25

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1.5x scale

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.