Home / 18,836.88-28,254.39-6,992.96

Finding the Fourth Proportional to 18,836.88, 28,254.39 and 6,992.96

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Solution

The fourth proportional to 18,836.88, 28,254.39 and 6,992.96 is: 10,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.88 : 28,254.39 = 6,992.96 : x
  2. Step 2: Convert to fraction form
    18,836.88/28,254.39 = 6,992.96/x
  3. Step 3: Cross multiply
    18,836.88x = 28,254.39 × 6,992.96
  4. Step 4: Simplify right side
    18,836.88x = 197,581,677.82
  5. Step 5: Solve for x
    x = 197,581,677.82/18,836.88
  6. Step 6: Final answer
    x = 10,489.09

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1.5x scale

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.