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Finding the Fourth Proportional to 8,435.91, 12,654.03 and 2,895.62

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Solution

The fourth proportional to 8,435.91, 12,654.03 and 2,895.62 is: 4,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.91 : 12,654.03 = 2,895.62 : x
  2. Step 2: Convert to fraction form
    8,435.91/12,654.03 = 2,895.62/x
  3. Step 3: Cross multiply
    8,435.91x = 12,654.03 × 2,895.62
  4. Step 4: Simplify right side
    8,435.91x = 36,641,262.35
  5. Step 5: Solve for x
    x = 36,641,262.35/8,435.91
  6. Step 6: Final answer
    x = 4,343.49

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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.