Home / 13,269.23-19,900.64-3,906.70

Finding the Fourth Proportional to 13,269.23, 19,900.64 and 3,906.70

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Solution

The fourth proportional to 13,269.23, 19,900.64 and 3,906.70 is: 5,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.23 : 19,900.64 = 3,906.70 : x
  2. Step 2: Convert to fraction form
    13,269.23/19,900.64 = 3,906.70/x
  3. Step 3: Cross multiply
    13,269.23x = 19,900.64 × 3,906.70
  4. Step 4: Simplify right side
    13,269.23x = 77,745,761.00
  5. Step 5: Solve for x
    x = 77,745,761.00/13,269.23
  6. Step 6: Final answer
    x = 5,859.10

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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.