Home / 13,896.04-20,829.50-5,125.48

Finding the Fourth Proportional to 13,896.04, 20,829.50 and 5,125.48

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Solution

The fourth proportional to 13,896.04, 20,829.50 and 5,125.48 is: 7,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.04 : 20,829.50 = 5,125.48 : x
  2. Step 2: Convert to fraction form
    13,896.04/20,829.50 = 5,125.48/x
  3. Step 3: Cross multiply
    13,896.04x = 20,829.50 × 5,125.48
  4. Step 4: Simplify right side
    13,896.04x = 106,761,185.66
  5. Step 5: Solve for x
    x = 106,761,185.66/13,896.04
  6. Step 6: Final answer
    x = 7,682.85

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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.