Home / 11,245.68-15,516.24-6,768.48

Finding the Fourth Proportional to 11,245.68, 15,516.24 and 6,768.48

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Solution

The fourth proportional to 11,245.68, 15,516.24 and 6,768.48 is: 9,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.68 : 15,516.24 = 6,768.48 : x
  2. Step 2: Convert to fraction form
    11,245.68/15,516.24 = 6,768.48/x
  3. Step 3: Cross multiply
    11,245.68x = 15,516.24 × 6,768.48
  4. Step 4: Simplify right side
    11,245.68x = 105,021,360.12
  5. Step 5: Solve for x
    x = 105,021,360.12/11,245.68
  6. Step 6: Final answer
    x = 9,338.82

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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.