Home / 18,677.67-28,016.43-5,528.97

Finding the Fourth Proportional to 18,677.67, 28,016.43 and 5,528.97

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Solution

The fourth proportional to 18,677.67, 28,016.43 and 5,528.97 is: 8,293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.67 : 28,016.43 = 5,528.97 : x
  2. Step 2: Convert to fraction form
    18,677.67/28,016.43 = 5,528.97/x
  3. Step 3: Cross multiply
    18,677.67x = 28,016.43 × 5,528.97
  4. Step 4: Simplify right side
    18,677.67x = 154,902,000.98
  5. Step 5: Solve for x
    x = 154,902,000.98/18,677.67
  6. Step 6: Final answer
    x = 8,293.43

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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.