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Finding the Fourth Proportional to 8,508.54, 12,764.98 and 2,665.20

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Solution

The fourth proportional to 8,508.54, 12,764.98 and 2,665.20 is: 3,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.54 : 12,764.98 = 2,665.20 : x
  2. Step 2: Convert to fraction form
    8,508.54/12,764.98 = 2,665.20/x
  3. Step 3: Cross multiply
    8,508.54x = 12,764.98 × 2,665.20
  4. Step 4: Simplify right side
    8,508.54x = 34,021,224.70
  5. Step 5: Solve for x
    x = 34,021,224.70/8,508.54
  6. Step 6: Final answer
    x = 3,998.48

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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.