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Finding the Fourth Proportional to 8,589.74, 12,885.21 and 2,746.82

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Solution

The fourth proportional to 8,589.74, 12,885.21 and 2,746.82 is: 4,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.74 : 12,885.21 = 2,746.82 : x
  2. Step 2: Convert to fraction form
    8,589.74/12,885.21 = 2,746.82/x
  3. Step 3: Cross multiply
    8,589.74x = 12,885.21 × 2,746.82
  4. Step 4: Simplify right side
    8,589.74x = 35,393,352.53
  5. Step 5: Solve for x
    x = 35,393,352.53/8,589.74
  6. Step 6: Final answer
    x = 4,120.42

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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.