Home / 13,172.10-19,752.39-3,935.94

Finding the Fourth Proportional to 13,172.10, 19,752.39 and 3,935.94

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Solution

The fourth proportional to 13,172.10, 19,752.39 and 3,935.94 is: 5,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.10 : 19,752.39 = 3,935.94 : x
  2. Step 2: Convert to fraction form
    13,172.10/19,752.39 = 3,935.94/x
  3. Step 3: Cross multiply
    13,172.10x = 19,752.39 × 3,935.94
  4. Step 4: Simplify right side
    13,172.10x = 77,744,221.90
  5. Step 5: Solve for x
    x = 77,744,221.90/13,172.10
  6. Step 6: Final answer
    x = 5,902.19

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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.