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Finding the Fourth Proportional to 8,449.34, 12,660.10 and 2,899.65

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Solution

The fourth proportional to 8,449.34, 12,660.10 and 2,899.65 is: 4,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.34 : 12,660.10 = 2,899.65 : x
  2. Step 2: Convert to fraction form
    8,449.34/12,660.10 = 2,899.65/x
  3. Step 3: Cross multiply
    8,449.34x = 12,660.10 × 2,899.65
  4. Step 4: Simplify right side
    8,449.34x = 36,709,827.98
  5. Step 5: Solve for x
    x = 36,709,827.98/8,449.34
  6. Step 6: Final answer
    x = 4,344.70

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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.