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Finding the Fourth Proportional to 8,433.99, 12,651.32 and 3,168.45

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Solution

The fourth proportional to 8,433.99, 12,651.32 and 3,168.45 is: 4,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.99 : 12,651.32 = 3,168.45 : x
  2. Step 2: Convert to fraction form
    8,433.99/12,651.32 = 3,168.45/x
  3. Step 3: Cross multiply
    8,433.99x = 12,651.32 × 3,168.45
  4. Step 4: Simplify right side
    8,433.99x = 40,085,082.78
  5. Step 5: Solve for x
    x = 40,085,082.78/8,433.99
  6. Step 6: Final answer
    x = 4,752.80

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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.