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Finding the Fourth Proportional to 8,527.64, 12,789.64 and 2,682.88

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Solution

The fourth proportional to 8,527.64, 12,789.64 and 2,682.88 is: 4,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.64 : 12,789.64 = 2,682.88 : x
  2. Step 2: Convert to fraction form
    8,527.64/12,789.64 = 2,682.88/x
  3. Step 3: Cross multiply
    8,527.64x = 12,789.64 × 2,682.88
  4. Step 4: Simplify right side
    8,527.64x = 34,313,069.36
  5. Step 5: Solve for x
    x = 34,313,069.36/8,527.64
  6. Step 6: Final answer
    x = 4,023.75

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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.