Home / 6,739.92-10,107.12-3,972.12

Finding the Fourth Proportional to 6,739.92, 10,107.12 and 3,972.12

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Solution

The fourth proportional to 6,739.92, 10,107.12 and 3,972.12 is: 5,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.92 : 10,107.12 = 3,972.12 : x
  2. Step 2: Convert to fraction form
    6,739.92/10,107.12 = 3,972.12/x
  3. Step 3: Cross multiply
    6,739.92x = 10,107.12 × 3,972.12
  4. Step 4: Simplify right side
    6,739.92x = 40,146,693.49
  5. Step 5: Solve for x
    x = 40,146,693.49/6,739.92
  6. Step 6: Final answer
    x = 5,956.55

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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.