Home / 11,436.59-17,128.26-11,121.30

Finding the Fourth Proportional to 11,436.59, 17,128.26 and 11,121.30

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Solution

The fourth proportional to 11,436.59, 17,128.26 and 11,121.30 is: 16,656.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.59 : 17,128.26 = 11,121.30 : x
  2. Step 2: Convert to fraction form
    11,436.59/17,128.26 = 11,121.30/x
  3. Step 3: Cross multiply
    11,436.59x = 17,128.26 × 11,121.30
  4. Step 4: Simplify right side
    11,436.59x = 190,488,517.94
  5. Step 5: Solve for x
    x = 190,488,517.94/11,436.59
  6. Step 6: Final answer
    x = 16,656.06

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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.