Home / 11,777.20-17,668.52-3,457.36

Finding the Fourth Proportional to 11,777.20, 17,668.52 and 3,457.36

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Solution

The fourth proportional to 11,777.20, 17,668.52 and 3,457.36 is: 5,186.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.20 : 17,668.52 = 3,457.36 : x
  2. Step 2: Convert to fraction form
    11,777.20/17,668.52 = 3,457.36/x
  3. Step 3: Cross multiply
    11,777.20x = 17,668.52 × 3,457.36
  4. Step 4: Simplify right side
    11,777.20x = 61,086,434.31
  5. Step 5: Solve for x
    x = 61,086,434.31/11,777.20
  6. Step 6: Final answer
    x = 5,186.84

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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.