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Finding the Fourth Proportional to 8,540.56, 12,810.84 and 2,697.63

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Solution

The fourth proportional to 8,540.56, 12,810.84 and 2,697.63 is: 4,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.56 : 12,810.84 = 2,697.63 : x
  2. Step 2: Convert to fraction form
    8,540.56/12,810.84 = 2,697.63/x
  3. Step 3: Cross multiply
    8,540.56x = 12,810.84 × 2,697.63
  4. Step 4: Simplify right side
    8,540.56x = 34,558,906.31
  5. Step 5: Solve for x
    x = 34,558,906.31/8,540.56
  6. Step 6: Final answer
    x = 4,046.45

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Similar ratio
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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.