Home / 12,439.80-17,166.72-6,850.80

Finding the Fourth Proportional to 12,439.80, 17,166.72 and 6,850.80

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Solution

The fourth proportional to 12,439.80, 17,166.72 and 6,850.80 is: 9,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.80 : 17,166.72 = 6,850.80 : x
  2. Step 2: Convert to fraction form
    12,439.80/17,166.72 = 6,850.80/x
  3. Step 3: Cross multiply
    12,439.80x = 17,166.72 × 6,850.80
  4. Step 4: Simplify right side
    12,439.80x = 117,605,765.38
  5. Step 5: Solve for x
    x = 117,605,765.38/12,439.80
  6. Step 6: Final answer
    x = 9,453.99

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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.