Home / 13,816.38-20,726.10-4,933.78

Finding the Fourth Proportional to 13,816.38, 20,726.10 and 4,933.78

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Solution

The fourth proportional to 13,816.38, 20,726.10 and 4,933.78 is: 7,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.38 : 20,726.10 = 4,933.78 : x
  2. Step 2: Convert to fraction form
    13,816.38/20,726.10 = 4,933.78/x
  3. Step 3: Cross multiply
    13,816.38x = 20,726.10 × 4,933.78
  4. Step 4: Simplify right side
    13,816.38x = 102,258,017.66
  5. Step 5: Solve for x
    x = 102,258,017.66/13,816.38
  6. Step 6: Final answer
    x = 7,401.22

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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.