Home / 11,131.23-16,698.68-5,285.87

Finding the Fourth Proportional to 11,131.23, 16,698.68 and 5,285.87

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Solution

The fourth proportional to 11,131.23, 16,698.68 and 5,285.87 is: 7,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.23 : 16,698.68 = 5,285.87 : x
  2. Step 2: Convert to fraction form
    11,131.23/16,698.68 = 5,285.87/x
  3. Step 3: Cross multiply
    11,131.23x = 16,698.68 × 5,285.87
  4. Step 4: Simplify right side
    11,131.23x = 88,267,004.35
  5. Step 5: Solve for x
    x = 88,267,004.35/11,131.23
  6. Step 6: Final answer
    x = 7,929.67

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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.