Home / 11,103.21-15,296.37-7,739.91

Finding the Fourth Proportional to 11,103.21, 15,296.37 and 7,739.91

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Solution

The fourth proportional to 11,103.21, 15,296.37 and 7,739.91 is: 10,662.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.21 : 15,296.37 = 7,739.91 : x
  2. Step 2: Convert to fraction form
    11,103.21/15,296.37 = 7,739.91/x
  3. Step 3: Cross multiply
    11,103.21x = 15,296.37 × 7,739.91
  4. Step 4: Simplify right side
    11,103.21x = 118,392,527.13
  5. Step 5: Solve for x
    x = 118,392,527.13/11,103.21
  6. Step 6: Final answer
    x = 10,662.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.