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Finding the Fourth Proportional to 8,600.26, 12,897.30 and 3,916.30

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Solution

The fourth proportional to 8,600.26, 12,897.30 and 3,916.30 is: 5,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.26 : 12,897.30 = 3,916.30 : x
  2. Step 2: Convert to fraction form
    8,600.26/12,897.30 = 3,916.30/x
  3. Step 3: Cross multiply
    8,600.26x = 12,897.30 × 3,916.30
  4. Step 4: Simplify right side
    8,600.26x = 50,509,695.99
  5. Step 5: Solve for x
    x = 50,509,695.99/8,600.26
  6. Step 6: Final answer
    x = 5,873.04

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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.