Home / 13,724.52-18,939.84-7,436.88

Finding the Fourth Proportional to 13,724.52, 18,939.84 and 7,436.88

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Solution

The fourth proportional to 13,724.52, 18,939.84 and 7,436.88 is: 10,262.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.52 : 18,939.84 = 7,436.88 : x
  2. Step 2: Convert to fraction form
    13,724.52/18,939.84 = 7,436.88/x
  3. Step 3: Cross multiply
    13,724.52x = 18,939.84 × 7,436.88
  4. Step 4: Simplify right side
    13,724.52x = 140,853,317.30
  5. Step 5: Solve for x
    x = 140,853,317.30/13,724.52
  6. Step 6: Final answer
    x = 10,262.90

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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.