Home / 13,995.82-20,997.18-4,135.06

Finding the Fourth Proportional to 13,995.82, 20,997.18 and 4,135.06

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Solution

The fourth proportional to 13,995.82, 20,997.18 and 4,135.06 is: 6,203.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.82 : 20,997.18 = 4,135.06 : x
  2. Step 2: Convert to fraction form
    13,995.82/20,997.18 = 4,135.06/x
  3. Step 3: Cross multiply
    13,995.82x = 20,997.18 × 4,135.06
  4. Step 4: Simplify right side
    13,995.82x = 86,824,599.13
  5. Step 5: Solve for x
    x = 86,824,599.13/13,995.82
  6. Step 6: Final answer
    x = 6,203.61

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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.