Home / 13,829.76-20,747.84-5,064.80

Finding the Fourth Proportional to 13,829.76, 20,747.84 and 5,064.80

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Solution

The fourth proportional to 13,829.76, 20,747.84 and 5,064.80 is: 7,598.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.76 : 20,747.84 = 5,064.80 : x
  2. Step 2: Convert to fraction form
    13,829.76/20,747.84 = 5,064.80/x
  3. Step 3: Cross multiply
    13,829.76x = 20,747.84 × 5,064.80
  4. Step 4: Simplify right side
    13,829.76x = 105,083,660.03
  5. Step 5: Solve for x
    x = 105,083,660.03/13,829.76
  6. Step 6: Final answer
    x = 7,598.37

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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.