Home / 13,939.06-20,908.33-5,618.89

Finding the Fourth Proportional to 13,939.06, 20,908.33 and 5,618.89

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Solution

The fourth proportional to 13,939.06, 20,908.33 and 5,618.89 is: 8,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.06 : 20,908.33 = 5,618.89 : x
  2. Step 2: Convert to fraction form
    13,939.06/20,908.33 = 5,618.89/x
  3. Step 3: Cross multiply
    13,939.06x = 20,908.33 × 5,618.89
  4. Step 4: Simplify right side
    13,939.06x = 117,481,606.35
  5. Step 5: Solve for x
    x = 117,481,606.35/13,939.06
  6. Step 6: Final answer
    x = 8,428.23

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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.