Home / 7,795.86-11,672.67-5,190.42

Finding the Fourth Proportional to 7,795.86, 11,672.67 and 5,190.42

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Solution

The fourth proportional to 7,795.86, 11,672.67 and 5,190.42 is: 7,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,795.86 : 11,672.67 = 5,190.42 : x
  2. Step 2: Convert to fraction form
    7,795.86/11,672.67 = 5,190.42/x
  3. Step 3: Cross multiply
    7,795.86x = 11,672.67 × 5,190.42
  4. Step 4: Simplify right side
    7,795.86x = 60,586,059.82
  5. Step 5: Solve for x
    x = 60,586,059.82/7,795.86
  6. Step 6: Final answer
    x = 7,771.57

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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.