Home / 13,811.58-20,720.42-5,046.48

Finding the Fourth Proportional to 13,811.58, 20,720.42 and 5,046.48

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Solution

The fourth proportional to 13,811.58, 20,720.42 and 5,046.48 is: 7,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.58 : 20,720.42 = 5,046.48 : x
  2. Step 2: Convert to fraction form
    13,811.58/20,720.42 = 5,046.48/x
  3. Step 3: Cross multiply
    13,811.58x = 20,720.42 × 5,046.48
  4. Step 4: Simplify right side
    13,811.58x = 104,565,185.12
  5. Step 5: Solve for x
    x = 104,565,185.12/13,811.58
  6. Step 6: Final answer
    x = 7,570.83

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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.