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Finding the Fourth Proportional to 8,589.50, 11,855.52 and 5,600.12

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Solution

The fourth proportional to 8,589.50, 11,855.52 and 5,600.12 is: 7,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.50 : 11,855.52 = 5,600.12 : x
  2. Step 2: Convert to fraction form
    8,589.50/11,855.52 = 5,600.12/x
  3. Step 3: Cross multiply
    8,589.50x = 11,855.52 × 5,600.12
  4. Step 4: Simplify right side
    8,589.50x = 66,392,334.66
  5. Step 5: Solve for x
    x = 66,392,334.66/8,589.50
  6. Step 6: Final answer
    x = 7,729.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.