Home / 18,767.69-28,147.43-6,289.49

Finding the Fourth Proportional to 18,767.69, 28,147.43 and 6,289.49

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Solution

The fourth proportional to 18,767.69, 28,147.43 and 6,289.49 is: 9,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.69 : 28,147.43 = 6,289.49 : x
  2. Step 2: Convert to fraction form
    18,767.69/28,147.43 = 6,289.49/x
  3. Step 3: Cross multiply
    18,767.69x = 28,147.43 × 6,289.49
  4. Step 4: Simplify right side
    18,767.69x = 177,032,907.27
  5. Step 5: Solve for x
    x = 177,032,907.27/18,767.69
  6. Step 6: Final answer
    x = 9,432.86

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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.