Home / 13,369.12-20,076.44-11,145.68

Finding the Fourth Proportional to 13,369.12, 20,076.44 and 11,145.68

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Solution

The fourth proportional to 13,369.12, 20,076.44 and 11,145.68 is: 16,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.12 : 20,076.44 = 11,145.68 : x
  2. Step 2: Convert to fraction form
    13,369.12/20,076.44 = 11,145.68/x
  3. Step 3: Cross multiply
    13,369.12x = 20,076.44 × 11,145.68
  4. Step 4: Simplify right side
    13,369.12x = 223,765,575.78
  5. Step 5: Solve for x
    x = 223,765,575.78/13,369.12
  6. Step 6: Final answer
    x = 16,737.49

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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.