Home / 19,218.38-28,843.97-7,539.80

Finding the Fourth Proportional to 19,218.38, 28,843.97 and 7,539.80

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Solution

The fourth proportional to 19,218.38, 28,843.97 and 7,539.80 is: 11,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.38 : 28,843.97 = 7,539.80 : x
  2. Step 2: Convert to fraction form
    19,218.38/28,843.97 = 7,539.80/x
  3. Step 3: Cross multiply
    19,218.38x = 28,843.97 × 7,539.80
  4. Step 4: Simplify right side
    19,218.38x = 217,477,583.09
  5. Step 5: Solve for x
    x = 217,477,583.09/19,218.38
  6. Step 6: Final answer
    x = 11,316.13

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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.