Home / 11,823.72-17,738.64-4,428.76

Finding the Fourth Proportional to 11,823.72, 17,738.64 and 4,428.76

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Solution

The fourth proportional to 11,823.72, 17,738.64 and 4,428.76 is: 6,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.72 : 17,738.64 = 4,428.76 : x
  2. Step 2: Convert to fraction form
    11,823.72/17,738.64 = 4,428.76/x
  3. Step 3: Cross multiply
    11,823.72x = 17,738.64 × 4,428.76
  4. Step 4: Simplify right side
    11,823.72x = 78,560,179.29
  5. Step 5: Solve for x
    x = 78,560,179.29/11,823.72
  6. Step 6: Final answer
    x = 6,644.29

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1.5x scale

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.