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Finding the Fourth Proportional to 8,266.03, 12,400.86 and 2,719.15

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Solution

The fourth proportional to 8,266.03, 12,400.86 and 2,719.15 is: 4,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.03 : 12,400.86 = 2,719.15 : x
  2. Step 2: Convert to fraction form
    8,266.03/12,400.86 = 2,719.15/x
  3. Step 3: Cross multiply
    8,266.03x = 12,400.86 × 2,719.15
  4. Step 4: Simplify right side
    8,266.03x = 33,719,798.47
  5. Step 5: Solve for x
    x = 33,719,798.47/8,266.03
  6. Step 6: Final answer
    x = 4,079.32

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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.