Home / 13,918.91-20,883.83-6,122.25

Finding the Fourth Proportional to 13,918.91, 20,883.83 and 6,122.25

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Solution

The fourth proportional to 13,918.91, 20,883.83 and 6,122.25 is: 9,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.91 : 20,883.83 = 6,122.25 : x
  2. Step 2: Convert to fraction form
    13,918.91/20,883.83 = 6,122.25/x
  3. Step 3: Cross multiply
    13,918.91x = 20,883.83 × 6,122.25
  4. Step 4: Simplify right side
    13,918.91x = 127,855,997.61
  5. Step 5: Solve for x
    x = 127,855,997.61/13,918.91
  6. Step 6: Final answer
    x = 9,185.78

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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.