Home / 18,839.27-28,268.09-7,749.29

Finding the Fourth Proportional to 18,839.27, 28,268.09 and 7,749.29

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Solution

The fourth proportional to 18,839.27, 28,268.09 and 7,749.29 is: 11,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.27 : 28,268.09 = 7,749.29 : x
  2. Step 2: Convert to fraction form
    18,839.27/28,268.09 = 7,749.29/x
  3. Step 3: Cross multiply
    18,839.27x = 28,268.09 × 7,749.29
  4. Step 4: Simplify right side
    18,839.27x = 219,057,627.16
  5. Step 5: Solve for x
    x = 219,057,627.16/18,839.27
  6. Step 6: Final answer
    x = 11,627.71

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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.