Home / 12,936.96-19,405.04-3,577.55

Finding the Fourth Proportional to 12,936.96, 19,405.04 and 3,577.55

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Solution

The fourth proportional to 12,936.96, 19,405.04 and 3,577.55 is: 5,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.96 : 19,405.04 = 3,577.55 : x
  2. Step 2: Convert to fraction form
    12,936.96/19,405.04 = 3,577.55/x
  3. Step 3: Cross multiply
    12,936.96x = 19,405.04 × 3,577.55
  4. Step 4: Simplify right side
    12,936.96x = 69,422,385.94
  5. Step 5: Solve for x
    x = 69,422,385.94/12,936.96
  6. Step 6: Final answer
    x = 5,366.21

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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.