Home / 8,160.17-12,238.43-3,230.91

Finding the Fourth Proportional to 8,160.17, 12,238.43 and 3,230.91

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Solution

The fourth proportional to 8,160.17, 12,238.43 and 3,230.91 is: 4,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.17 : 12,238.43 = 3,230.91 : x
  2. Step 2: Convert to fraction form
    8,160.17/12,238.43 = 3,230.91/x
  3. Step 3: Cross multiply
    8,160.17x = 12,238.43 × 3,230.91
  4. Step 4: Simplify right side
    8,160.17x = 39,541,249.72
  5. Step 5: Solve for x
    x = 39,541,249.72/8,160.17
  6. Step 6: Final answer
    x = 4,845.64

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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.