Home / 13,015.08-19,520.46-3,654

Finding the Fourth Proportional to 13,015.08, 19,520.46 and 3,654

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Solution

The fourth proportional to 13,015.08, 19,520.46 and 3,654 is: 5,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.08 : 19,520.46 = 3,654 : x
  2. Step 2: Convert to fraction form
    13,015.08/19,520.46 = 3,654/x
  3. Step 3: Cross multiply
    13,015.08x = 19,520.46 × 3,654
  4. Step 4: Simplify right side
    13,015.08x = 71,327,760.84
  5. Step 5: Solve for x
    x = 71,327,760.84/13,015.08
  6. Step 6: Final answer
    x = 5,480.39

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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.