Home / 18,421.24-27,631.98-6,729.88

Finding the Fourth Proportional to 18,421.24, 27,631.98 and 6,729.88

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Solution

The fourth proportional to 18,421.24, 27,631.98 and 6,729.88 is: 10,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.24 : 27,631.98 = 6,729.88 : x
  2. Step 2: Convert to fraction form
    18,421.24/27,631.98 = 6,729.88/x
  3. Step 3: Cross multiply
    18,421.24x = 27,631.98 × 6,729.88
  4. Step 4: Simplify right side
    18,421.24x = 185,959,909.56
  5. Step 5: Solve for x
    x = 185,959,909.56/18,421.24
  6. Step 6: Final answer
    x = 10,094.86

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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.