Home / 13,724.23-18,939.44-7,436.60

Finding the Fourth Proportional to 13,724.23, 18,939.44 and 7,436.60

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Solution

The fourth proportional to 13,724.23, 18,939.44 and 7,436.60 is: 10,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.23 : 18,939.44 = 7,436.60 : x
  2. Step 2: Convert to fraction form
    13,724.23/18,939.44 = 7,436.60/x
  3. Step 3: Cross multiply
    13,724.23x = 18,939.44 × 7,436.60
  4. Step 4: Simplify right side
    13,724.23x = 140,845,039.50
  5. Step 5: Solve for x
    x = 140,845,039.50/13,724.23
  6. Step 6: Final answer
    x = 10,262.51

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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.