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Finding the Fourth Proportional to 6,758.64, 10,113.30 and 3,986.64

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Solution

The fourth proportional to 6,758.64, 10,113.30 and 3,986.64 is: 5,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,758.64 : 10,113.30 = 3,986.64 : x
  2. Step 2: Convert to fraction form
    6,758.64/10,113.30 = 3,986.64/x
  3. Step 3: Cross multiply
    6,758.64x = 10,113.30 × 3,986.64
  4. Step 4: Simplify right side
    6,758.64x = 40,318,086.31
  5. Step 5: Solve for x
    x = 40,318,086.31/6,758.64
  6. Step 6: Final answer
    x = 5,965.41

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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.