Home / 13,369.11-20,076.45-11,145.66

Finding the Fourth Proportional to 13,369.11, 20,076.45 and 11,145.66

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Solution

The fourth proportional to 13,369.11, 20,076.45 and 11,145.66 is: 16,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.11 : 20,076.45 = 11,145.66 : x
  2. Step 2: Convert to fraction form
    13,369.11/20,076.45 = 11,145.66/x
  3. Step 3: Cross multiply
    13,369.11x = 20,076.45 × 11,145.66
  4. Step 4: Simplify right side
    13,369.11x = 223,765,285.71
  5. Step 5: Solve for x
    x = 223,765,285.71/13,369.11
  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.