Home / 6,399.05-9,600.12-5,087.75

Finding the Fourth Proportional to 6,399.05, 9,600.12 and 5,087.75

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Solution

The fourth proportional to 6,399.05, 9,600.12 and 5,087.75 is: 7,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.05 : 9,600.12 = 5,087.75 : x
  2. Step 2: Convert to fraction form
    6,399.05/9,600.12 = 5,087.75/x
  3. Step 3: Cross multiply
    6,399.05x = 9,600.12 × 5,087.75
  4. Step 4: Simplify right side
    6,399.05x = 48,842,962.53
  5. Step 5: Solve for x
    x = 48,842,962.53/6,399.05
  6. Step 6: Final answer
    x = 7,632.85

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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.