Home / 8,422.14-12,635.04-2,579.20

Finding the Fourth Proportional to 8,422.14, 12,635.04 and 2,579.20

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Solution

The fourth proportional to 8,422.14, 12,635.04 and 2,579.20 is: 3,869.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.14 : 12,635.04 = 2,579.20 : x
  2. Step 2: Convert to fraction form
    8,422.14/12,635.04 = 2,579.20/x
  3. Step 3: Cross multiply
    8,422.14x = 12,635.04 × 2,579.20
  4. Step 4: Simplify right side
    8,422.14x = 32,588,295.17
  5. Step 5: Solve for x
    x = 32,588,295.17/8,422.14
  6. Step 6: Final answer
    x = 3,869.36

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1.5x scale

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.