Home / 8,160.36-12,238.91-3,998.58

Finding the Fourth Proportional to 8,160.36, 12,238.91 and 3,998.58

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Solution

The fourth proportional to 8,160.36, 12,238.91 and 3,998.58 is: 5,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.36 : 12,238.91 = 3,998.58 : x
  2. Step 2: Convert to fraction form
    8,160.36/12,238.91 = 3,998.58/x
  3. Step 3: Cross multiply
    8,160.36x = 12,238.91 × 3,998.58
  4. Step 4: Simplify right side
    8,160.36x = 48,938,260.75
  5. Step 5: Solve for x
    x = 48,938,260.75/8,160.36
  6. Step 6: Final answer
    x = 5,997.07

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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.