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Finding the Fourth Proportional to 7,706.50, 10,634.98 and 4,169.70

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Solution

The fourth proportional to 7,706.50, 10,634.98 and 4,169.70 is: 5,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,706.50 : 10,634.98 = 4,169.70 : x
  2. Step 2: Convert to fraction form
    7,706.50/10,634.98 = 4,169.70/x
  3. Step 3: Cross multiply
    7,706.50x = 10,634.98 × 4,169.70
  4. Step 4: Simplify right side
    7,706.50x = 44,344,676.11
  5. Step 5: Solve for x
    x = 44,344,676.11/7,706.50
  6. Step 6: Final answer
    x = 5,754.19

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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.