Home / 11,216.12-16,821.84-3,820.52

Finding the Fourth Proportional to 11,216.12, 16,821.84 and 3,820.52

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Solution

The fourth proportional to 11,216.12, 16,821.84 and 3,820.52 is: 5,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.12 : 16,821.84 = 3,820.52 : x
  2. Step 2: Convert to fraction form
    11,216.12/16,821.84 = 3,820.52/x
  3. Step 3: Cross multiply
    11,216.12x = 16,821.84 × 3,820.52
  4. Step 4: Simplify right side
    11,216.12x = 64,268,176.16
  5. Step 5: Solve for x
    x = 64,268,176.16/11,216.12
  6. Step 6: Final answer
    x = 5,729.98

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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.