Home / 7,706.20-10,631.10-5,217.88

Finding the Fourth Proportional to 7,706.20, 10,631.10 and 5,217.88

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Solution

The fourth proportional to 7,706.20, 10,631.10 and 5,217.88 is: 7,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,706.20 : 10,631.10 = 5,217.88 : x
  2. Step 2: Convert to fraction form
    7,706.20/10,631.10 = 5,217.88/x
  3. Step 3: Cross multiply
    7,706.20x = 10,631.10 × 5,217.88
  4. Step 4: Simplify right side
    7,706.20x = 55,471,804.07
  5. Step 5: Solve for x
    x = 55,471,804.07/7,706.20
  6. Step 6: Final answer
    x = 7,198.33

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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.