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Finding the Fourth Proportional to 8,634.98, 12,944.28 and 5,506.21

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Solution

The fourth proportional to 8,634.98, 12,944.28 and 5,506.21 is: 8,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.98 : 12,944.28 = 5,506.21 : x
  2. Step 2: Convert to fraction form
    8,634.98/12,944.28 = 5,506.21/x
  3. Step 3: Cross multiply
    8,634.98x = 12,944.28 × 5,506.21
  4. Step 4: Simplify right side
    8,634.98x = 71,273,923.98
  5. Step 5: Solve for x
    x = 71,273,923.98/8,634.98
  6. Step 6: Final answer
    x = 8,254.09

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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.