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Finding the Fourth Proportional to 8,489.66, 11,714.97 and 4,711.96

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Solution

The fourth proportional to 8,489.66, 11,714.97 and 4,711.96 is: 6,502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.66 : 11,714.97 = 4,711.96 : x
  2. Step 2: Convert to fraction form
    8,489.66/11,714.97 = 4,711.96/x
  3. Step 3: Cross multiply
    8,489.66x = 11,714.97 × 4,711.96
  4. Step 4: Simplify right side
    8,489.66x = 55,200,482.57
  5. Step 5: Solve for x
    x = 55,200,482.57/8,489.66
  6. Step 6: Final answer
    x = 6,502.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.