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Finding the Fourth Proportional to 7,806.76, 10,772.84 and 4,269.26

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Solution

The fourth proportional to 7,806.76, 10,772.84 and 4,269.26 is: 5,891.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.76 : 10,772.84 = 4,269.26 : x
  2. Step 2: Convert to fraction form
    7,806.76/10,772.84 = 4,269.26/x
  3. Step 3: Cross multiply
    7,806.76x = 10,772.84 × 4,269.26
  4. Step 4: Simplify right side
    7,806.76x = 45,992,054.90
  5. Step 5: Solve for x
    x = 45,992,054.90/7,806.76
  6. Step 6: Final answer
    x = 5,891.31

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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.