Home / 13,724.26-18,939.57-7,436.63

Finding the Fourth Proportional to 13,724.26, 18,939.57 and 7,436.63

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Solution

The fourth proportional to 13,724.26, 18,939.57 and 7,436.63 is: 10,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.26 : 18,939.57 = 7,436.63 : x
  2. Step 2: Convert to fraction form
    13,724.26/18,939.57 = 7,436.63/x
  3. Step 3: Cross multiply
    13,724.26x = 18,939.57 × 7,436.63
  4. Step 4: Simplify right side
    13,724.26x = 140,846,574.45
  5. Step 5: Solve for x
    x = 140,846,574.45/13,724.26
  6. Step 6: Final answer
    x = 10,262.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.