Home / 13,997.82-21,000.18-4,137.06

Finding the Fourth Proportional to 13,997.82, 21,000.18 and 4,137.06

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Solution

The fourth proportional to 13,997.82, 21,000.18 and 4,137.06 is: 6,206.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.82 : 21,000.18 = 4,137.06 : x
  2. Step 2: Convert to fraction form
    13,997.82/21,000.18 = 4,137.06/x
  3. Step 3: Cross multiply
    13,997.82x = 21,000.18 × 4,137.06
  4. Step 4: Simplify right side
    13,997.82x = 86,879,004.67
  5. Step 5: Solve for x
    x = 86,879,004.67/13,997.82
  6. Step 6: Final answer
    x = 6,206.61

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1.5x scale

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.