Home / 11,983.80-17,972.82-6,137.40

Finding the Fourth Proportional to 11,983.80, 17,972.82 and 6,137.40

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Solution

The fourth proportional to 11,983.80, 17,972.82 and 6,137.40 is: 9,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.80 : 17,972.82 = 6,137.40 : x
  2. Step 2: Convert to fraction form
    11,983.80/17,972.82 = 6,137.40/x
  3. Step 3: Cross multiply
    11,983.80x = 17,972.82 × 6,137.40
  4. Step 4: Simplify right side
    11,983.80x = 110,306,385.47
  5. Step 5: Solve for x
    x = 110,306,385.47/11,983.80
  6. Step 6: Final answer
    x = 9,204.63

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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.