Home / 13,651.71-18,791.99-11,769.53

Finding the Fourth Proportional to 13,651.71, 18,791.99 and 11,769.53

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Solution

The fourth proportional to 13,651.71, 18,791.99 and 11,769.53 is: 16,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.71 : 18,791.99 = 11,769.53 : x
  2. Step 2: Convert to fraction form
    13,651.71/18,791.99 = 11,769.53/x
  3. Step 3: Cross multiply
    13,651.71x = 18,791.99 × 11,769.53
  4. Step 4: Simplify right side
    13,651.71x = 221,172,737.26
  5. Step 5: Solve for x
    x = 221,172,737.26/13,651.71
  6. Step 6: Final answer
    x = 16,201.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.