Home / 8,162.70-12,246.15-3,480.36

Finding the Fourth Proportional to 8,162.70, 12,246.15 and 3,480.36

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Solution

The fourth proportional to 8,162.70, 12,246.15 and 3,480.36 is: 5,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.70 : 12,246.15 = 3,480.36 : x
  2. Step 2: Convert to fraction form
    8,162.70/12,246.15 = 3,480.36/x
  3. Step 3: Cross multiply
    8,162.70x = 12,246.15 × 3,480.36
  4. Step 4: Simplify right side
    8,162.70x = 42,621,010.61
  5. Step 5: Solve for x
    x = 42,621,010.61/8,162.70
  6. Step 6: Final answer
    x = 5,221.44

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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.