Home / 8,546.05-12,789.91-7,160.95

Finding the Fourth Proportional to 8,546.05, 12,789.91 and 7,160.95

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Solution

The fourth proportional to 8,546.05, 12,789.91 and 7,160.95 is: 10,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,546.05 : 12,789.91 = 7,160.95 : x
  2. Step 2: Convert to fraction form
    8,546.05/12,789.91 = 7,160.95/x
  3. Step 3: Cross multiply
    8,546.05x = 12,789.91 × 7,160.95
  4. Step 4: Simplify right side
    8,546.05x = 91,587,856.14
  5. Step 5: Solve for x
    x = 91,587,856.14/8,546.05
  6. Step 6: Final answer
    x = 10,716.98

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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.