Home / 11,827.62-17,729.10-4,428.87

Finding the Fourth Proportional to 11,827.62, 17,729.10 and 4,428.87

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Solution

The fourth proportional to 11,827.62, 17,729.10 and 4,428.87 is: 6,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,827.62 : 17,729.10 = 4,428.87 : x
  2. Step 2: Convert to fraction form
    11,827.62/17,729.10 = 4,428.87/x
  3. Step 3: Cross multiply
    11,827.62x = 17,729.10 × 4,428.87
  4. Step 4: Simplify right side
    11,827.62x = 78,519,879.12
  5. Step 5: Solve for x
    x = 78,519,879.12/11,827.62
  6. Step 6: Final answer
    x = 6,638.69

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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.