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Finding the Fourth Proportional to 12,365.52, 18,540.48 and 6,822.74

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Solution

The fourth proportional to 12,365.52, 18,540.48 and 6,822.74 is: 10,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.52 : 18,540.48 = 6,822.74 : x
  2. Step 2: Convert to fraction form
    12,365.52/18,540.48 = 6,822.74/x
  3. Step 3: Cross multiply
    12,365.52x = 18,540.48 × 6,822.74
  4. Step 4: Simplify right side
    12,365.52x = 126,496,781.81
  5. Step 5: Solve for x
    x = 126,496,781.81/12,365.52
  6. Step 6: Final answer
    x = 10,229.80

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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.