Home / 12,519.73-17,257.26-8,485.30

Finding the Fourth Proportional to 12,519.73, 17,257.26 and 8,485.30

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Solution

The fourth proportional to 12,519.73, 17,257.26 and 8,485.30 is: 11,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.73 : 17,257.26 = 8,485.30 : x
  2. Step 2: Convert to fraction form
    12,519.73/17,257.26 = 8,485.30/x
  3. Step 3: Cross multiply
    12,519.73x = 17,257.26 × 8,485.30
  4. Step 4: Simplify right side
    12,519.73x = 146,433,028.28
  5. Step 5: Solve for x
    x = 146,433,028.28/12,519.73
  6. Step 6: Final answer
    x = 11,696.18

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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.