Home / 12,251.39-16,907.09-9,179.80

Finding the Fourth Proportional to 12,251.39, 16,907.09 and 9,179.80

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Solution

The fourth proportional to 12,251.39, 16,907.09 and 9,179.80 is: 12,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.39 : 16,907.09 = 9,179.80 : x
  2. Step 2: Convert to fraction form
    12,251.39/16,907.09 = 9,179.80/x
  3. Step 3: Cross multiply
    12,251.39x = 16,907.09 × 9,179.80
  4. Step 4: Simplify right side
    12,251.39x = 155,203,616.62
  5. Step 5: Solve for x
    x = 155,203,616.62/12,251.39
  6. Step 6: Final answer
    x = 12,668.25

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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.