Home / 18,942.26-26,135.63-11,387.07

Finding the Fourth Proportional to 18,942.26, 26,135.63 and 11,387.07

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Solution

The fourth proportional to 18,942.26, 26,135.63 and 11,387.07 is: 15,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.26 : 26,135.63 = 11,387.07 : x
  2. Step 2: Convert to fraction form
    18,942.26/26,135.63 = 11,387.07/x
  3. Step 3: Cross multiply
    18,942.26x = 26,135.63 × 11,387.07
  4. Step 4: Simplify right side
    18,942.26x = 297,608,191.37
  5. Step 5: Solve for x
    x = 297,608,191.37/18,942.26
  6. Step 6: Final answer
    x = 15,711.34

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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.