Home / 6,399.92-9,614.40-5,525.12

Finding the Fourth Proportional to 6,399.92, 9,614.40 and 5,525.12

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Solution

The fourth proportional to 6,399.92, 9,614.40 and 5,525.12 is: 8,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.92 : 9,614.40 = 5,525.12 : x
  2. Step 2: Convert to fraction form
    6,399.92/9,614.40 = 5,525.12/x
  3. Step 3: Cross multiply
    6,399.92x = 9,614.40 × 5,525.12
  4. Step 4: Simplify right side
    6,399.92x = 53,120,713.73
  5. Step 5: Solve for x
    x = 53,120,713.73/6,399.92
  6. Step 6: Final answer
    x = 8,300.22

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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.