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Finding the Fourth Proportional to 8,604.54, 12,907.26 and 2,761.20

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Solution

The fourth proportional to 8,604.54, 12,907.26 and 2,761.20 is: 4,141.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.54 : 12,907.26 = 2,761.20 : x
  2. Step 2: Convert to fraction form
    8,604.54/12,907.26 = 2,761.20/x
  3. Step 3: Cross multiply
    8,604.54x = 12,907.26 × 2,761.20
  4. Step 4: Simplify right side
    8,604.54x = 35,639,526.31
  5. Step 5: Solve for x
    x = 35,639,526.31/8,604.54
  6. Step 6: Final answer
    x = 4,141.94

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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.