Home / 12,485.44-17,227.60-7,180.48

Finding the Fourth Proportional to 12,485.44, 17,227.60 and 7,180.48

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Solution

The fourth proportional to 12,485.44, 17,227.60 and 7,180.48 is: 9,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.44 : 17,227.60 = 7,180.48 : x
  2. Step 2: Convert to fraction form
    12,485.44/17,227.60 = 7,180.48/x
  3. Step 3: Cross multiply
    12,485.44x = 17,227.60 × 7,180.48
  4. Step 4: Simplify right side
    12,485.44x = 123,702,437.25
  5. Step 5: Solve for x
    x = 123,702,437.25/12,485.44
  6. Step 6: Final answer
    x = 9,907.74

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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.