Home / 11,104.36-15,327.30-6,391.96

Finding the Fourth Proportional to 11,104.36, 15,327.30 and 6,391.96

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Solution

The fourth proportional to 11,104.36, 15,327.30 and 6,391.96 is: 8,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.36 : 15,327.30 = 6,391.96 : x
  2. Step 2: Convert to fraction form
    11,104.36/15,327.30 = 6,391.96/x
  3. Step 3: Cross multiply
    11,104.36x = 15,327.30 × 6,391.96
  4. Step 4: Simplify right side
    11,104.36x = 97,971,488.51
  5. Step 5: Solve for x
    x = 97,971,488.51/11,104.36
  6. Step 6: Final answer
    x = 8,822.79

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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.