Home / 18,231.60-27,359.55-8,365.80

Finding the Fourth Proportional to 18,231.60, 27,359.55 and 8,365.80

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Solution

The fourth proportional to 18,231.60, 27,359.55 and 8,365.80 is: 12,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.60 : 27,359.55 = 8,365.80 : x
  2. Step 2: Convert to fraction form
    18,231.60/27,359.55 = 8,365.80/x
  3. Step 3: Cross multiply
    18,231.60x = 27,359.55 × 8,365.80
  4. Step 4: Simplify right side
    18,231.60x = 228,884,523.39
  5. Step 5: Solve for x
    x = 228,884,523.39/18,231.60
  6. Step 6: Final answer
    x = 12,554.28

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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.