Home / 13,724.08-18,939.26-7,436.46

Finding the Fourth Proportional to 13,724.08, 18,939.26 and 7,436.46

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Solution

The fourth proportional to 13,724.08, 18,939.26 and 7,436.46 is: 10,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.08 : 18,939.26 = 7,436.46 : x
  2. Step 2: Convert to fraction form
    13,724.08/18,939.26 = 7,436.46/x
  3. Step 3: Cross multiply
    13,724.08x = 18,939.26 × 7,436.46
  4. Step 4: Simplify right side
    13,724.08x = 140,841,049.42
  5. Step 5: Solve for x
    x = 140,841,049.42/13,724.08
  6. Step 6: Final answer
    x = 10,262.33

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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.