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Finding the Fourth Proportional to 8,725.60, 13,099.08 and 5,766.60

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Solution

The fourth proportional to 8,725.60, 13,099.08 and 5,766.60 is: 8,656.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.60 : 13,099.08 = 5,766.60 : x
  2. Step 2: Convert to fraction form
    8,725.60/13,099.08 = 5,766.60/x
  3. Step 3: Cross multiply
    8,725.60x = 13,099.08 × 5,766.60
  4. Step 4: Simplify right side
    8,725.60x = 75,537,154.73
  5. Step 5: Solve for x
    x = 75,537,154.73/8,725.60
  6. Step 6: Final answer
    x = 8,656.96

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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.