Home / 11,219.02-16,828.28-3,828.64

Finding the Fourth Proportional to 11,219.02, 16,828.28 and 3,828.64

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Solution

The fourth proportional to 11,219.02, 16,828.28 and 3,828.64 is: 5,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.02 : 16,828.28 = 3,828.64 : x
  2. Step 2: Convert to fraction form
    11,219.02/16,828.28 = 3,828.64/x
  3. Step 3: Cross multiply
    11,219.02x = 16,828.28 × 3,828.64
  4. Step 4: Simplify right side
    11,219.02x = 64,429,425.94
  5. Step 5: Solve for x
    x = 64,429,425.94/11,219.02
  6. Step 6: Final answer
    x = 5,742.87

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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.