Home / 19,745.73-29,618.60-7,904.88

Finding the Fourth Proportional to 19,745.73, 29,618.60 and 7,904.88

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Solution

The fourth proportional to 19,745.73, 29,618.60 and 7,904.88 is: 11,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,745.73 : 29,618.60 = 7,904.88 : x
  2. Step 2: Convert to fraction form
    19,745.73/29,618.60 = 7,904.88/x
  3. Step 3: Cross multiply
    19,745.73x = 29,618.60 × 7,904.88
  4. Step 4: Simplify right side
    19,745.73x = 234,131,439.24
  5. Step 5: Solve for x
    x = 234,131,439.24/19,745.73
  6. Step 6: Final answer
    x = 11,857.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.