Home / 12,055.28-16,638.39-8,076.96

Finding the Fourth Proportional to 12,055.28, 16,638.39 and 8,076.96

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Solution

The fourth proportional to 12,055.28, 16,638.39 and 8,076.96 is: 11,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.28 : 16,638.39 = 8,076.96 : x
  2. Step 2: Convert to fraction form
    12,055.28/16,638.39 = 8,076.96/x
  3. Step 3: Cross multiply
    12,055.28x = 16,638.39 × 8,076.96
  4. Step 4: Simplify right side
    12,055.28x = 134,387,610.49
  5. Step 5: Solve for x
    x = 134,387,610.49/12,055.28
  6. Step 6: Final answer
    x = 11,147.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.