Home / 8,485.20-12,727.80-3,553.52

Finding the Fourth Proportional to 8,485.20, 12,727.80 and 3,553.52

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Solution

The fourth proportional to 8,485.20, 12,727.80 and 3,553.52 is: 5,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.20 : 12,727.80 = 3,553.52 : x
  2. Step 2: Convert to fraction form
    8,485.20/12,727.80 = 3,553.52/x
  3. Step 3: Cross multiply
    8,485.20x = 12,727.80 × 3,553.52
  4. Step 4: Simplify right side
    8,485.20x = 45,228,428.22
  5. Step 5: Solve for x
    x = 45,228,428.22/8,485.20
  6. Step 6: Final answer
    x = 5,330.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.