Home / 8,321.28-12,482.58-2,477.88

Finding the Fourth Proportional to 8,321.28, 12,482.58 and 2,477.88

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Solution

The fourth proportional to 8,321.28, 12,482.58 and 2,477.88 is: 3,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.28 : 12,482.58 = 2,477.88 : x
  2. Step 2: Convert to fraction form
    8,321.28/12,482.58 = 2,477.88/x
  3. Step 3: Cross multiply
    8,321.28x = 12,482.58 × 2,477.88
  4. Step 4: Simplify right side
    8,321.28x = 30,930,335.33
  5. Step 5: Solve for x
    x = 30,930,335.33/8,321.28
  6. Step 6: Final answer
    x = 3,717.02

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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.