Home / 11,216.48-16,820.40-3,316.80

Finding the Fourth Proportional to 11,216.48, 16,820.40 and 3,316.80

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Solution

The fourth proportional to 11,216.48, 16,820.40 and 3,316.80 is: 4,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.48 : 16,820.40 = 3,316.80 : x
  2. Step 2: Convert to fraction form
    11,216.48/16,820.40 = 3,316.80/x
  3. Step 3: Cross multiply
    11,216.48x = 16,820.40 × 3,316.80
  4. Step 4: Simplify right side
    11,216.48x = 55,789,902.72
  5. Step 5: Solve for x
    x = 55,789,902.72/11,216.48
  6. Step 6: Final answer
    x = 4,973.92

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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.