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Finding the Fourth Proportional to 8,756, 13,136.28 and 2,600

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Solution

The fourth proportional to 8,756, 13,136.28 and 2,600 is: 3,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756 : 13,136.28 = 2,600 : x
  2. Step 2: Convert to fraction form
    8,756/13,136.28 = 2,600/x
  3. Step 3: Cross multiply
    8,756x = 13,136.28 × 2,600
  4. Step 4: Simplify right side
    8,756x = 34,154,328
  5. Step 5: Solve for x
    x = 34,154,328/8,756
  6. Step 6: Final answer
    x = 3,900.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.