Home / 7,736.20-10,678.26-6,163.72

Finding the Fourth Proportional to 7,736.20, 10,678.26 and 6,163.72

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Solution

The fourth proportional to 7,736.20, 10,678.26 and 6,163.72 is: 8,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,736.20 : 10,678.26 = 6,163.72 : x
  2. Step 2: Convert to fraction form
    7,736.20/10,678.26 = 6,163.72/x
  3. Step 3: Cross multiply
    7,736.20x = 10,678.26 × 6,163.72
  4. Step 4: Simplify right side
    7,736.20x = 65,817,804.73
  5. Step 5: Solve for x
    x = 65,817,804.73/7,736.20
  6. Step 6: Final answer
    x = 8,507.77

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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.