Home / 18,220.64-27,334.06-8,360.75

Finding the Fourth Proportional to 18,220.64, 27,334.06 and 8,360.75

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Solution

The fourth proportional to 18,220.64, 27,334.06 and 8,360.75 is: 12,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.64 : 27,334.06 = 8,360.75 : x
  2. Step 2: Convert to fraction form
    18,220.64/27,334.06 = 8,360.75/x
  3. Step 3: Cross multiply
    18,220.64x = 27,334.06 × 8,360.75
  4. Step 4: Simplify right side
    18,220.64x = 228,533,289.58
  5. Step 5: Solve for x
    x = 228,533,289.58/18,220.64
  6. Step 6: Final answer
    x = 12,542.55

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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.