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Finding the Fourth Proportional to 6,960.03, 9,606.29 and 6,399.61

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Solution

The fourth proportional to 6,960.03, 9,606.29 and 6,399.61 is: 8,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,960.03 : 9,606.29 = 6,399.61 : x
  2. Step 2: Convert to fraction form
    6,960.03/9,606.29 = 6,399.61/x
  3. Step 3: Cross multiply
    6,960.03x = 9,606.29 × 6,399.61
  4. Step 4: Simplify right side
    6,960.03x = 61,476,509.55
  5. Step 5: Solve for x
    x = 61,476,509.55/6,960.03
  6. Step 6: Final answer
    x = 8,832.79

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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.