Home / 13,976.24-20,943.76-10,449.70

Finding the Fourth Proportional to 13,976.24, 20,943.76 and 10,449.70

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Solution

The fourth proportional to 13,976.24, 20,943.76 and 10,449.70 is: 15,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.24 : 20,943.76 = 10,449.70 : x
  2. Step 2: Convert to fraction form
    13,976.24/20,943.76 = 10,449.70/x
  3. Step 3: Cross multiply
    13,976.24x = 20,943.76 × 10,449.70
  4. Step 4: Simplify right side
    13,976.24x = 218,856,008.87
  5. Step 5: Solve for x
    x = 218,856,008.87/13,976.24
  6. Step 6: Final answer
    x = 15,659.15

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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.