Home / 12,204.40-18,308.76-4,811.80

Finding the Fourth Proportional to 12,204.40, 18,308.76 and 4,811.80

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Solution

The fourth proportional to 12,204.40, 18,308.76 and 4,811.80 is: 7,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.40 : 18,308.76 = 4,811.80 : x
  2. Step 2: Convert to fraction form
    12,204.40/18,308.76 = 4,811.80/x
  3. Step 3: Cross multiply
    12,204.40x = 18,308.76 × 4,811.80
  4. Step 4: Simplify right side
    12,204.40x = 88,098,091.37
  5. Step 5: Solve for x
    x = 88,098,091.37/12,204.40
  6. Step 6: Final answer
    x = 7,218.55

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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.