Home / 11,157.28-16,739.52-3,765.12

Finding the Fourth Proportional to 11,157.28, 16,739.52 and 3,765.12

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Solution

The fourth proportional to 11,157.28, 16,739.52 and 3,765.12 is: 5,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.28 : 16,739.52 = 3,765.12 : x
  2. Step 2: Convert to fraction form
    11,157.28/16,739.52 = 3,765.12/x
  3. Step 3: Cross multiply
    11,157.28x = 16,739.52 × 3,765.12
  4. Step 4: Simplify right side
    11,157.28x = 63,026,301.54
  5. Step 5: Solve for x
    x = 63,026,301.54/11,157.28
  6. Step 6: Final answer
    x = 5,648.89

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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.