Home / 13,939.58-20,902.44-5,054.55

Finding the Fourth Proportional to 13,939.58, 20,902.44 and 5,054.55

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Solution

The fourth proportional to 13,939.58, 20,902.44 and 5,054.55 is: 7,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.58 : 20,902.44 = 5,054.55 : x
  2. Step 2: Convert to fraction form
    13,939.58/20,902.44 = 5,054.55/x
  3. Step 3: Cross multiply
    13,939.58x = 20,902.44 × 5,054.55
  4. Step 4: Simplify right side
    13,939.58x = 105,652,428.10
  5. Step 5: Solve for x
    x = 105,652,428.10/13,939.58
  6. Step 6: Final answer
    x = 7,579.31

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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.