Home / 18,851.53-28,277.27-4,811.56

Finding the Fourth Proportional to 18,851.53, 28,277.27 and 4,811.56

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Solution

The fourth proportional to 18,851.53, 28,277.27 and 4,811.56 is: 7,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.53 : 28,277.27 = 4,811.56 : x
  2. Step 2: Convert to fraction form
    18,851.53/28,277.27 = 4,811.56/x
  3. Step 3: Cross multiply
    18,851.53x = 28,277.27 × 4,811.56
  4. Step 4: Simplify right side
    18,851.53x = 136,057,629.87
  5. Step 5: Solve for x
    x = 136,057,629.87/18,851.53
  6. Step 6: Final answer
    x = 7,217.33

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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.