Home / 13,174.90-19,763.37-3,815.05

Finding the Fourth Proportional to 13,174.90, 19,763.37 and 3,815.05

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Solution

The fourth proportional to 13,174.90, 19,763.37 and 3,815.05 is: 5,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.90 : 19,763.37 = 3,815.05 : x
  2. Step 2: Convert to fraction form
    13,174.90/19,763.37 = 3,815.05/x
  3. Step 3: Cross multiply
    13,174.90x = 19,763.37 × 3,815.05
  4. Step 4: Simplify right side
    13,174.90x = 75,398,294.13
  5. Step 5: Solve for x
    x = 75,398,294.13/13,174.90
  6. Step 6: Final answer
    x = 5,722.88

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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.