Home / 13,764.14-20,651.68-4,405.60

Finding the Fourth Proportional to 13,764.14, 20,651.68 and 4,405.60

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Solution

The fourth proportional to 13,764.14, 20,651.68 and 4,405.60 is: 6,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.14 : 20,651.68 = 4,405.60 : x
  2. Step 2: Convert to fraction form
    13,764.14/20,651.68 = 4,405.60/x
  3. Step 3: Cross multiply
    13,764.14x = 20,651.68 × 4,405.60
  4. Step 4: Simplify right side
    13,764.14x = 90,983,041.41
  5. Step 5: Solve for x
    x = 90,983,041.41/13,764.14
  6. Step 6: Final answer
    x = 6,610.15

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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.