Home / 12,076.29-18,104.36-8,385.75

Finding the Fourth Proportional to 12,076.29, 18,104.36 and 8,385.75

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Solution

The fourth proportional to 12,076.29, 18,104.36 and 8,385.75 is: 12,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.29 : 18,104.36 = 8,385.75 : x
  2. Step 2: Convert to fraction form
    12,076.29/18,104.36 = 8,385.75/x
  3. Step 3: Cross multiply
    12,076.29x = 18,104.36 × 8,385.75
  4. Step 4: Simplify right side
    12,076.29x = 151,818,594.94
  5. Step 5: Solve for x
    x = 151,818,594.94/12,076.29
  6. Step 6: Final answer
    x = 12,571.63

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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.