Home / 8,321.04-12,484.62-3,939.18

Finding the Fourth Proportional to 8,321.04, 12,484.62 and 3,939.18

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Solution

The fourth proportional to 8,321.04, 12,484.62 and 3,939.18 is: 5,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.04 : 12,484.62 = 3,939.18 : x
  2. Step 2: Convert to fraction form
    8,321.04/12,484.62 = 3,939.18/x
  3. Step 3: Cross multiply
    8,321.04x = 12,484.62 × 3,939.18
  4. Step 4: Simplify right side
    8,321.04x = 49,179,165.41
  5. Step 5: Solve for x
    x = 49,179,165.41/8,321.04
  6. Step 6: Final answer
    x = 5,910.22

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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.