Home / 12,928.14-19,393.16-4,169.34

Finding the Fourth Proportional to 12,928.14, 19,393.16 and 4,169.34

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Solution

The fourth proportional to 12,928.14, 19,393.16 and 4,169.34 is: 6,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.14 : 19,393.16 = 4,169.34 : x
  2. Step 2: Convert to fraction form
    12,928.14/19,393.16 = 4,169.34/x
  3. Step 3: Cross multiply
    12,928.14x = 19,393.16 × 4,169.34
  4. Step 4: Simplify right side
    12,928.14x = 80,856,656.87
  5. Step 5: Solve for x
    x = 80,856,656.87/12,928.14
  6. Step 6: Final answer
    x = 6,254.31

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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.