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Finding the Fourth Proportional to 8,974.64, 13,464.09 and 2,818.64

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Solution

The fourth proportional to 8,974.64, 13,464.09 and 2,818.64 is: 4,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.64 : 13,464.09 = 2,818.64 : x
  2. Step 2: Convert to fraction form
    8,974.64/13,464.09 = 2,818.64/x
  3. Step 3: Cross multiply
    8,974.64x = 13,464.09 × 2,818.64
  4. Step 4: Simplify right side
    8,974.64x = 37,950,422.64
  5. Step 5: Solve for x
    x = 37,950,422.64/8,974.64
  6. Step 6: Final answer
    x = 4,228.63

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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.