Home / 18,207.20-27,310.80-8,365.70

Finding the Fourth Proportional to 18,207.20, 27,310.80 and 8,365.70

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Solution

The fourth proportional to 18,207.20, 27,310.80 and 8,365.70 is: 12,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.20 : 27,310.80 = 8,365.70 : x
  2. Step 2: Convert to fraction form
    18,207.20/27,310.80 = 8,365.70/x
  3. Step 3: Cross multiply
    18,207.20x = 27,310.80 × 8,365.70
  4. Step 4: Simplify right side
    18,207.20x = 228,473,959.56
  5. Step 5: Solve for x
    x = 228,473,959.56/18,207.20
  6. Step 6: Final answer
    x = 12,548.55

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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.