Home / 13,727.75-18,944.27-7,440.12

Finding the Fourth Proportional to 13,727.75, 18,944.27 and 7,440.12

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Solution

The fourth proportional to 13,727.75, 18,944.27 and 7,440.12 is: 10,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.75 : 18,944.27 = 7,440.12 : x
  2. Step 2: Convert to fraction form
    13,727.75/18,944.27 = 7,440.12/x
  3. Step 3: Cross multiply
    13,727.75x = 18,944.27 × 7,440.12
  4. Step 4: Simplify right side
    13,727.75x = 140,947,604.91
  5. Step 5: Solve for x
    x = 140,947,604.91/13,727.75
  6. Step 6: Final answer
    x = 10,267.35

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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.