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Finding the Fourth Proportional to 8,508.69, 12,765.06 and 2,665.76

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Solution

The fourth proportional to 8,508.69, 12,765.06 and 2,665.76 is: 3,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.69 : 12,765.06 = 2,665.76 : x
  2. Step 2: Convert to fraction form
    8,508.69/12,765.06 = 2,665.76/x
  3. Step 3: Cross multiply
    8,508.69x = 12,765.06 × 2,665.76
  4. Step 4: Simplify right side
    8,508.69x = 34,028,522.52
  5. Step 5: Solve for x
    x = 34,028,522.52/8,508.69
  6. Step 6: Final answer
    x = 3,999.27

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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.