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Finding the Fourth Proportional to 12,626.83, 18,941.03 and 5,231.87

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Solution

The fourth proportional to 12,626.83, 18,941.03 and 5,231.87 is: 7,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.83 : 18,941.03 = 5,231.87 : x
  2. Step 2: Convert to fraction form
    12,626.83/18,941.03 = 5,231.87/x
  3. Step 3: Cross multiply
    12,626.83x = 18,941.03 × 5,231.87
  4. Step 4: Simplify right side
    12,626.83x = 99,097,006.63
  5. Step 5: Solve for x
    x = 99,097,006.63/12,626.83
  6. Step 6: Final answer
    x = 7,848.13

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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.