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Finding the Fourth Proportional to 8,714.43, 13,086.23 and 8,646.39

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Solution

The fourth proportional to 8,714.43, 13,086.23 and 8,646.39 is: 12,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.43 : 13,086.23 = 8,646.39 : x
  2. Step 2: Convert to fraction form
    8,714.43/13,086.23 = 8,646.39/x
  3. Step 3: Cross multiply
    8,714.43x = 13,086.23 × 8,646.39
  4. Step 4: Simplify right side
    8,714.43x = 113,148,604.98
  5. Step 5: Solve for x
    x = 113,148,604.98/8,714.43
  6. Step 6: Final answer
    x = 12,984.05

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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.