Home / 18,790.80-28,167.66-8,266.50

Finding the Fourth Proportional to 18,790.80, 28,167.66 and 8,266.50

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Solution

The fourth proportional to 18,790.80, 28,167.66 and 8,266.50 is: 12,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.80 : 28,167.66 = 8,266.50 : x
  2. Step 2: Convert to fraction form
    18,790.80/28,167.66 = 8,266.50/x
  3. Step 3: Cross multiply
    18,790.80x = 28,167.66 × 8,266.50
  4. Step 4: Simplify right side
    18,790.80x = 232,847,961.39
  5. Step 5: Solve for x
    x = 232,847,961.39/18,790.80
  6. Step 6: Final answer
    x = 12,391.59

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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.