Home / 6,808.72-10,209.92-3,998.40

Finding the Fourth Proportional to 6,808.72, 10,209.92 and 3,998.40

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Solution

The fourth proportional to 6,808.72, 10,209.92 and 3,998.40 is: 5,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808.72 : 10,209.92 = 3,998.40 : x
  2. Step 2: Convert to fraction form
    6,808.72/10,209.92 = 3,998.40/x
  3. Step 3: Cross multiply
    6,808.72x = 10,209.92 × 3,998.40
  4. Step 4: Simplify right side
    6,808.72x = 40,823,344.13
  5. Step 5: Solve for x
    x = 40,823,344.13/6,808.72
  6. Step 6: Final answer
    x = 5,995.74

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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.