Home / 13,726.28-20,589.42-3,865.56

Finding the Fourth Proportional to 13,726.28, 20,589.42 and 3,865.56

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Solution

The fourth proportional to 13,726.28, 20,589.42 and 3,865.56 is: 5,798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.28 : 20,589.42 = 3,865.56 : x
  2. Step 2: Convert to fraction form
    13,726.28/20,589.42 = 3,865.56/x
  3. Step 3: Cross multiply
    13,726.28x = 20,589.42 × 3,865.56
  4. Step 4: Simplify right side
    13,726.28x = 79,589,638.38
  5. Step 5: Solve for x
    x = 79,589,638.38/13,726.28
  6. Step 6: Final answer
    x = 5,798.34

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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.