Home / 11,777.20-17,668.23-5,116.57

Finding the Fourth Proportional to 11,777.20, 17,668.23 and 5,116.57

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Solution

The fourth proportional to 11,777.20, 17,668.23 and 5,116.57 is: 7,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.20 : 17,668.23 = 5,116.57 : x
  2. Step 2: Convert to fraction form
    11,777.20/17,668.23 = 5,116.57/x
  3. Step 3: Cross multiply
    11,777.20x = 17,668.23 × 5,116.57
  4. Step 4: Simplify right side
    11,777.20x = 90,400,735.57
  5. Step 5: Solve for x
    x = 90,400,735.57/11,777.20
  6. Step 6: Final answer
    x = 7,675.91

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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.