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Finding the Fourth Proportional to 8,519.59, 12,775.06 and 3,898.63

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Solution

The fourth proportional to 8,519.59, 12,775.06 and 3,898.63 is: 5,845.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.59 : 12,775.06 = 3,898.63 : x
  2. Step 2: Convert to fraction form
    8,519.59/12,775.06 = 3,898.63/x
  3. Step 3: Cross multiply
    8,519.59x = 12,775.06 × 3,898.63
  4. Step 4: Simplify right side
    8,519.59x = 49,805,158.55
  5. Step 5: Solve for x
    x = 49,805,158.55/8,519.59
  6. Step 6: Final answer
    x = 5,845.96

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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.