Home / 13,589.44-20,391.80-10,619.56

Finding the Fourth Proportional to 13,589.44, 20,391.80 and 10,619.56

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Solution

The fourth proportional to 13,589.44, 20,391.80 and 10,619.56 is: 15,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.44 : 20,391.80 = 10,619.56 : x
  2. Step 2: Convert to fraction form
    13,589.44/20,391.80 = 10,619.56/x
  3. Step 3: Cross multiply
    13,589.44x = 20,391.80 × 10,619.56
  4. Step 4: Simplify right side
    13,589.44x = 216,551,943.61
  5. Step 5: Solve for x
    x = 216,551,943.61/13,589.44
  6. Step 6: Final answer
    x = 15,935.31

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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.