Home / 11,342.90-15,654.26-6,867.86

Finding the Fourth Proportional to 11,342.90, 15,654.26 and 6,867.86

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Solution

The fourth proportional to 11,342.90, 15,654.26 and 6,867.86 is: 9,478.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.90 : 15,654.26 = 6,867.86 : x
  2. Step 2: Convert to fraction form
    11,342.90/15,654.26 = 6,867.86/x
  3. Step 3: Cross multiply
    11,342.90x = 15,654.26 × 6,867.86
  4. Step 4: Simplify right side
    11,342.90x = 107,511,204.98
  5. Step 5: Solve for x
    x = 107,511,204.98/11,342.90
  6. Step 6: Final answer
    x = 9,478.28

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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.