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Finding the Fourth Proportional to 8,607.41, 12,911.03 and 2,764.01

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Solution

The fourth proportional to 8,607.41, 12,911.03 and 2,764.01 is: 4,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.41 : 12,911.03 = 2,764.01 : x
  2. Step 2: Convert to fraction form
    8,607.41/12,911.03 = 2,764.01/x
  3. Step 3: Cross multiply
    8,607.41x = 12,911.03 × 2,764.01
  4. Step 4: Simplify right side
    8,607.41x = 35,686,234.49
  5. Step 5: Solve for x
    x = 35,686,234.49/8,607.41
  6. Step 6: Final answer
    x = 4,145.99

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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.