Home / 18,677.69-28,013.75-7,584.33

Finding the Fourth Proportional to 18,677.69, 28,013.75 and 7,584.33

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Solution

The fourth proportional to 18,677.69, 28,013.75 and 7,584.33 is: 11,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.69 : 28,013.75 = 7,584.33 : x
  2. Step 2: Convert to fraction form
    18,677.69/28,013.75 = 7,584.33/x
  3. Step 3: Cross multiply
    18,677.69x = 28,013.75 × 7,584.33
  4. Step 4: Simplify right side
    18,677.69x = 212,465,620.11
  5. Step 5: Solve for x
    x = 212,465,620.11/18,677.69
  6. Step 6: Final answer
    x = 11,375.37

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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.