Home / 8,563.20-12,844.68-2,719.86

Finding the Fourth Proportional to 8,563.20, 12,844.68 and 2,719.86

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Solution

The fourth proportional to 8,563.20, 12,844.68 and 2,719.86 is: 4,079.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.20 : 12,844.68 = 2,719.86 : x
  2. Step 2: Convert to fraction form
    8,563.20/12,844.68 = 2,719.86/x
  3. Step 3: Cross multiply
    8,563.20x = 12,844.68 × 2,719.86
  4. Step 4: Simplify right side
    8,563.20x = 34,935,731.34
  5. Step 5: Solve for x
    x = 34,935,731.34/8,563.20
  6. Step 6: Final answer
    x = 4,079.75

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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.