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Finding the Fourth Proportional to 8,563.30, 12,844.90 and 3,015.98

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Solution

The fourth proportional to 8,563.30, 12,844.90 and 3,015.98 is: 4,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.30 : 12,844.90 = 3,015.98 : x
  2. Step 2: Convert to fraction form
    8,563.30/12,844.90 = 3,015.98/x
  3. Step 3: Cross multiply
    8,563.30x = 12,844.90 × 3,015.98
  4. Step 4: Simplify right side
    8,563.30x = 38,739,961.50
  5. Step 5: Solve for x
    x = 38,739,961.50/8,563.30
  6. Step 6: Final answer
    x = 4,523.95

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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.