Home / 13,727.88-18,944.42-7,440.26

Finding the Fourth Proportional to 13,727.88, 18,944.42 and 7,440.26

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Solution

The fourth proportional to 13,727.88, 18,944.42 and 7,440.26 is: 10,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.88 : 18,944.42 = 7,440.26 : x
  2. Step 2: Convert to fraction form
    13,727.88/18,944.42 = 7,440.26/x
  3. Step 3: Cross multiply
    13,727.88x = 18,944.42 × 7,440.26
  4. Step 4: Simplify right side
    13,727.88x = 140,951,278.43
  5. Step 5: Solve for x
    x = 140,951,278.43/13,727.88
  6. Step 6: Final answer
    x = 10,267.52

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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.