Home / 8,982.14-12,382.50-6,321.28

Finding the Fourth Proportional to 8,982.14, 12,382.50 and 6,321.28

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Solution

The fourth proportional to 8,982.14, 12,382.50 and 6,321.28 is: 8,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.14 : 12,382.50 = 6,321.28 : x
  2. Step 2: Convert to fraction form
    8,982.14/12,382.50 = 6,321.28/x
  3. Step 3: Cross multiply
    8,982.14x = 12,382.50 × 6,321.28
  4. Step 4: Simplify right side
    8,982.14x = 78,273,249.60
  5. Step 5: Solve for x
    x = 78,273,249.60/8,982.14
  6. Step 6: Final answer
    x = 8,714.32

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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.