Home / 11,972.49-17,961.17-4,186.77

Finding the Fourth Proportional to 11,972.49, 17,961.17 and 4,186.77

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Solution

The fourth proportional to 11,972.49, 17,961.17 and 4,186.77 is: 6,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.49 : 17,961.17 = 4,186.77 : x
  2. Step 2: Convert to fraction form
    11,972.49/17,961.17 = 4,186.77/x
  3. Step 3: Cross multiply
    11,972.49x = 17,961.17 × 4,186.77
  4. Step 4: Simplify right side
    11,972.49x = 75,199,266.79
  5. Step 5: Solve for x
    x = 75,199,266.79/11,972.49
  6. Step 6: Final answer
    x = 6,281.00

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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.