Home / 11,828.20-17,732.68-4,428.52

Finding the Fourth Proportional to 11,828.20, 17,732.68 and 4,428.52

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Solution

The fourth proportional to 11,828.20, 17,732.68 and 4,428.52 is: 6,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.20 : 17,732.68 = 4,428.52 : x
  2. Step 2: Convert to fraction form
    11,828.20/17,732.68 = 4,428.52/x
  3. Step 3: Cross multiply
    11,828.20x = 17,732.68 × 4,428.52
  4. Step 4: Simplify right side
    11,828.20x = 78,529,528.03
  5. Step 5: Solve for x
    x = 78,529,528.03/11,828.20
  6. Step 6: Final answer
    x = 6,639.18

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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.