Home / 8,579.75-12,869.64-2,423.75

Finding the Fourth Proportional to 8,579.75, 12,869.64 and 2,423.75

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Solution

The fourth proportional to 8,579.75, 12,869.64 and 2,423.75 is: 3,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.75 : 12,869.64 = 2,423.75 : x
  2. Step 2: Convert to fraction form
    8,579.75/12,869.64 = 2,423.75/x
  3. Step 3: Cross multiply
    8,579.75x = 12,869.64 × 2,423.75
  4. Step 4: Simplify right side
    8,579.75x = 31,192,789.95
  5. Step 5: Solve for x
    x = 31,192,789.95/8,579.75
  6. Step 6: Final answer
    x = 3,635.63

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Similar ratio
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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.