Home / 8,479.28-12,720.48-2,634.50

Finding the Fourth Proportional to 8,479.28, 12,720.48 and 2,634.50

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Solution

The fourth proportional to 8,479.28, 12,720.48 and 2,634.50 is: 3,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.28 : 12,720.48 = 2,634.50 : x
  2. Step 2: Convert to fraction form
    8,479.28/12,720.48 = 2,634.50/x
  3. Step 3: Cross multiply
    8,479.28x = 12,720.48 × 2,634.50
  4. Step 4: Simplify right side
    8,479.28x = 33,512,104.56
  5. Step 5: Solve for x
    x = 33,512,104.56/8,479.28
  6. Step 6: Final answer
    x = 3,952.23

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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.