Home / 10,843.15-16,249.12-6,390.31

Finding the Fourth Proportional to 10,843.15, 16,249.12 and 6,390.31

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Solution

The fourth proportional to 10,843.15, 16,249.12 and 6,390.31 is: 9,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,843.15 : 16,249.12 = 6,390.31 : x
  2. Step 2: Convert to fraction form
    10,843.15/16,249.12 = 6,390.31/x
  3. Step 3: Cross multiply
    10,843.15x = 16,249.12 × 6,390.31
  4. Step 4: Simplify right side
    10,843.15x = 103,836,914.03
  5. Step 5: Solve for x
    x = 103,836,914.03/10,843.15
  6. Step 6: Final answer
    x = 9,576.27

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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.