Home / 13,672.90-20,495.68-11,791.17

Finding the Fourth Proportional to 13,672.90, 20,495.68 and 11,791.17

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Solution

The fourth proportional to 13,672.90, 20,495.68 and 11,791.17 is: 17,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.90 : 20,495.68 = 11,791.17 : x
  2. Step 2: Convert to fraction form
    13,672.90/20,495.68 = 11,791.17/x
  3. Step 3: Cross multiply
    13,672.90x = 20,495.68 × 11,791.17
  4. Step 4: Simplify right side
    13,672.90x = 241,668,083.99
  5. Step 5: Solve for x
    x = 241,668,083.99/13,672.90
  6. Step 6: Final answer
    x = 17,674.97

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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.