Home / 8,120.92-11,206.87-4,394.92

Finding the Fourth Proportional to 8,120.92, 11,206.87 and 4,394.92

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Solution

The fourth proportional to 8,120.92, 11,206.87 and 4,394.92 is: 6,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.92 : 11,206.87 = 4,394.92 : x
  2. Step 2: Convert to fraction form
    8,120.92/11,206.87 = 4,394.92/x
  3. Step 3: Cross multiply
    8,120.92x = 11,206.87 × 4,394.92
  4. Step 4: Simplify right side
    8,120.92x = 49,253,263.35
  5. Step 5: Solve for x
    x = 49,253,263.35/8,120.92
  6. Step 6: Final answer
    x = 6,064.99

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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.