Home / 18,942.22-26,137.29-10,982.80

Finding the Fourth Proportional to 18,942.22, 26,137.29 and 10,982.80

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Solution

The fourth proportional to 18,942.22, 26,137.29 and 10,982.80 is: 15,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.22 : 26,137.29 = 10,982.80 : x
  2. Step 2: Convert to fraction form
    18,942.22/26,137.29 = 10,982.80/x
  3. Step 3: Cross multiply
    18,942.22x = 26,137.29 × 10,982.80
  4. Step 4: Simplify right side
    18,942.22x = 287,060,628.61
  5. Step 5: Solve for x
    x = 287,060,628.61/18,942.22
  6. Step 6: Final answer
    x = 15,154.54

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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.