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Finding the Fourth Proportional to 8,520.28, 12,774.03 and 5,739.15

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Solution

The fourth proportional to 8,520.28, 12,774.03 and 5,739.15 is: 8,604.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.28 : 12,774.03 = 5,739.15 : x
  2. Step 2: Convert to fraction form
    8,520.28/12,774.03 = 5,739.15/x
  3. Step 3: Cross multiply
    8,520.28x = 12,774.03 × 5,739.15
  4. Step 4: Simplify right side
    8,520.28x = 73,312,074.27
  5. Step 5: Solve for x
    x = 73,312,074.27/8,520.28
  6. Step 6: Final answer
    x = 8,604.42

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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.