Home / 13,104.72-19,655.16-3,871.44

Finding the Fourth Proportional to 13,104.72, 19,655.16 and 3,871.44

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Solution

The fourth proportional to 13,104.72, 19,655.16 and 3,871.44 is: 5,806.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.72 : 19,655.16 = 3,871.44 : x
  2. Step 2: Convert to fraction form
    13,104.72/19,655.16 = 3,871.44/x
  3. Step 3: Cross multiply
    13,104.72x = 19,655.16 × 3,871.44
  4. Step 4: Simplify right side
    13,104.72x = 76,093,772.63
  5. Step 5: Solve for x
    x = 76,093,772.63/13,104.72
  6. Step 6: Final answer
    x = 5,806.59

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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.