Home / 13,308.16-19,961.94-3,447.40

Finding the Fourth Proportional to 13,308.16, 19,961.94 and 3,447.40

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Solution

The fourth proportional to 13,308.16, 19,961.94 and 3,447.40 is: 5,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.16 : 19,961.94 = 3,447.40 : x
  2. Step 2: Convert to fraction form
    13,308.16/19,961.94 = 3,447.40/x
  3. Step 3: Cross multiply
    13,308.16x = 19,961.94 × 3,447.40
  4. Step 4: Simplify right side
    13,308.16x = 68,816,791.96
  5. Step 5: Solve for x
    x = 68,816,791.96/13,308.16
  6. Step 6: Final answer
    x = 5,171.02

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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.