Home / 13,172.08-19,761.36-12,092.08

Finding the Fourth Proportional to 13,172.08, 19,761.36 and 12,092.08

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Solution

The fourth proportional to 13,172.08, 19,761.36 and 12,092.08 is: 18,141.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.08 : 19,761.36 = 12,092.08 : x
  2. Step 2: Convert to fraction form
    13,172.08/19,761.36 = 12,092.08/x
  3. Step 3: Cross multiply
    13,172.08x = 19,761.36 × 12,092.08
  4. Step 4: Simplify right side
    13,172.08x = 238,955,946.03
  5. Step 5: Solve for x
    x = 238,955,946.03/13,172.08
  6. Step 6: Final answer
    x = 18,141.09

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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.