Home / 7,777.24-11,668.74-3,619.48

Finding the Fourth Proportional to 7,777.24, 11,668.74 and 3,619.48

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Solution

The fourth proportional to 7,777.24, 11,668.74 and 3,619.48 is: 5,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.24 : 11,668.74 = 3,619.48 : x
  2. Step 2: Convert to fraction form
    7,777.24/11,668.74 = 3,619.48/x
  3. Step 3: Cross multiply
    7,777.24x = 11,668.74 × 3,619.48
  4. Step 4: Simplify right side
    7,777.24x = 42,234,771.06
  5. Step 5: Solve for x
    x = 42,234,771.06/7,777.24
  6. Step 6: Final answer
    x = 5,430.56

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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.