Home / 18,839.43-28,259.10-7,738.29

Finding the Fourth Proportional to 18,839.43, 28,259.10 and 7,738.29

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Solution

The fourth proportional to 18,839.43, 28,259.10 and 7,738.29 is: 11,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.43 : 28,259.10 = 7,738.29 : x
  2. Step 2: Convert to fraction form
    18,839.43/28,259.10 = 7,738.29/x
  3. Step 3: Cross multiply
    18,839.43x = 28,259.10 × 7,738.29
  4. Step 4: Simplify right side
    18,839.43x = 218,677,110.94
  5. Step 5: Solve for x
    x = 218,677,110.94/18,839.43
  6. Step 6: Final answer
    x = 11,607.42

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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.