Home / 11,985.18-16,540.04-6,679.96

Finding the Fourth Proportional to 11,985.18, 16,540.04 and 6,679.96

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Solution

The fourth proportional to 11,985.18, 16,540.04 and 6,679.96 is: 9,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.18 : 16,540.04 = 6,679.96 : x
  2. Step 2: Convert to fraction form
    11,985.18/16,540.04 = 6,679.96/x
  3. Step 3: Cross multiply
    11,985.18x = 16,540.04 × 6,679.96
  4. Step 4: Simplify right side
    11,985.18x = 110,486,805.60
  5. Step 5: Solve for x
    x = 110,486,805.60/11,985.18
  6. Step 6: Final answer
    x = 9,218.62

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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.