Home / 13,607.33-20,418.80-5,286.28

Finding the Fourth Proportional to 13,607.33, 20,418.80 and 5,286.28

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Solution

The fourth proportional to 13,607.33, 20,418.80 and 5,286.28 is: 7,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.33 : 20,418.80 = 5,286.28 : x
  2. Step 2: Convert to fraction form
    13,607.33/20,418.80 = 5,286.28/x
  3. Step 3: Cross multiply
    13,607.33x = 20,418.80 × 5,286.28
  4. Step 4: Simplify right side
    13,607.33x = 107,939,365.54
  5. Step 5: Solve for x
    x = 107,939,365.54/13,607.33
  6. Step 6: Final answer
    x = 7,932.44

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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.