Home / 8,160.33-12,221.51-7,935.85

Finding the Fourth Proportional to 8,160.33, 12,221.51 and 7,935.85

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Solution

The fourth proportional to 8,160.33, 12,221.51 and 7,935.85 is: 11,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.33 : 12,221.51 = 7,935.85 : x
  2. Step 2: Convert to fraction form
    8,160.33/12,221.51 = 7,935.85/x
  3. Step 3: Cross multiply
    8,160.33x = 12,221.51 × 7,935.85
  4. Step 4: Simplify right side
    8,160.33x = 96,988,033.68
  5. Step 5: Solve for x
    x = 96,988,033.68/8,160.33
  6. Step 6: Final answer
    x = 11,885.31

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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.