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Finding the Fourth Proportional to 8,527.79, 12,791.97 and 2,684.45

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Solution

The fourth proportional to 8,527.79, 12,791.97 and 2,684.45 is: 4,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.79 : 12,791.97 = 2,684.45 : x
  2. Step 2: Convert to fraction form
    8,527.79/12,791.97 = 2,684.45/x
  3. Step 3: Cross multiply
    8,527.79x = 12,791.97 × 2,684.45
  4. Step 4: Simplify right side
    8,527.79x = 34,339,339.91
  5. Step 5: Solve for x
    x = 34,339,339.91/8,527.79
  6. Step 6: Final answer
    x = 4,026.76

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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.