Home / 12,691.44-19,004.37-8,754.84

Finding the Fourth Proportional to 12,691.44, 19,004.37 and 8,754.84

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Solution

The fourth proportional to 12,691.44, 19,004.37 and 8,754.84 is: 13,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.44 : 19,004.37 = 8,754.84 : x
  2. Step 2: Convert to fraction form
    12,691.44/19,004.37 = 8,754.84/x
  3. Step 3: Cross multiply
    12,691.44x = 19,004.37 × 8,754.84
  4. Step 4: Simplify right side
    12,691.44x = 166,380,218.65
  5. Step 5: Solve for x
    x = 166,380,218.65/12,691.44
  6. Step 6: Final answer
    x = 13,109.64

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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.