Home / 11,101.76-16,633.96-5,172.26

Finding the Fourth Proportional to 11,101.76, 16,633.96 and 5,172.26

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Solution

The fourth proportional to 11,101.76, 16,633.96 and 5,172.26 is: 7,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.76 : 16,633.96 = 5,172.26 : x
  2. Step 2: Convert to fraction form
    11,101.76/16,633.96 = 5,172.26/x
  3. Step 3: Cross multiply
    11,101.76x = 16,633.96 × 5,172.26
  4. Step 4: Simplify right side
    11,101.76x = 86,035,069.85
  5. Step 5: Solve for x
    x = 86,035,069.85/11,101.76
  6. Step 6: Final answer
    x = 7,749.68

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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.