Home / 18,975.26-26,191.42-11,021.06

Finding the Fourth Proportional to 18,975.26, 26,191.42 and 11,021.06

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Solution

The fourth proportional to 18,975.26, 26,191.42 and 11,021.06 is: 15,212.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.26 : 26,191.42 = 11,021.06 : x
  2. Step 2: Convert to fraction form
    18,975.26/26,191.42 = 11,021.06/x
  3. Step 3: Cross multiply
    18,975.26x = 26,191.42 × 11,021.06
  4. Step 4: Simplify right side
    18,975.26x = 288,657,211.31
  5. Step 5: Solve for x
    x = 288,657,211.31/18,975.26
  6. Step 6: Final answer
    x = 15,212.29

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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.