Home / 12,169.95-16,794.75-7,137.80

Finding the Fourth Proportional to 12,169.95, 16,794.75 and 7,137.80

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Solution

The fourth proportional to 12,169.95, 16,794.75 and 7,137.80 is: 9,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.95 : 16,794.75 = 7,137.80 : x
  2. Step 2: Convert to fraction form
    12,169.95/16,794.75 = 7,137.80/x
  3. Step 3: Cross multiply
    12,169.95x = 16,794.75 × 7,137.80
  4. Step 4: Simplify right side
    12,169.95x = 119,877,608.54
  5. Step 5: Solve for x
    x = 119,877,608.54/12,169.95
  6. Step 6: Final answer
    x = 9,850.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.