Home / 11,166.36-16,749.56-5,305.20

Finding the Fourth Proportional to 11,166.36, 16,749.56 and 5,305.20

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Solution

The fourth proportional to 11,166.36, 16,749.56 and 5,305.20 is: 7,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.36 : 16,749.56 = 5,305.20 : x
  2. Step 2: Convert to fraction form
    11,166.36/16,749.56 = 5,305.20/x
  3. Step 3: Cross multiply
    11,166.36x = 16,749.56 × 5,305.20
  4. Step 4: Simplify right side
    11,166.36x = 88,859,765.71
  5. Step 5: Solve for x
    x = 88,859,765.71/11,166.36
  6. Step 6: Final answer
    x = 7,957.81

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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.