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Finding the Fourth Proportional to 8,253.91, 12,369.22 and 6,396.33

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Solution

The fourth proportional to 8,253.91, 12,369.22 and 6,396.33 is: 9,585.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.91 : 12,369.22 = 6,396.33 : x
  2. Step 2: Convert to fraction form
    8,253.91/12,369.22 = 6,396.33/x
  3. Step 3: Cross multiply
    8,253.91x = 12,369.22 × 6,396.33
  4. Step 4: Simplify right side
    8,253.91x = 79,117,643.36
  5. Step 5: Solve for x
    x = 79,117,643.36/8,253.91
  6. Step 6: Final answer
    x = 9,585.47

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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.