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Finding the Fourth Proportional to 8,725.66, 13,074.50 and 8,495.02

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Solution

The fourth proportional to 8,725.66, 13,074.50 and 8,495.02 is: 12,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.66 : 13,074.50 = 8,495.02 : x
  2. Step 2: Convert to fraction form
    8,725.66/13,074.50 = 8,495.02/x
  3. Step 3: Cross multiply
    8,725.66x = 13,074.50 × 8,495.02
  4. Step 4: Simplify right side
    8,725.66x = 111,068,138.99
  5. Step 5: Solve for x
    x = 111,068,138.99/8,725.66
  6. Step 6: Final answer
    x = 12,728.91

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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.