Home / 13,727.73-18,944.22-7,440.12

Finding the Fourth Proportional to 13,727.73, 18,944.22 and 7,440.12

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Solution

The fourth proportional to 13,727.73, 18,944.22 and 7,440.12 is: 10,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.73 : 18,944.22 = 7,440.12 : x
  2. Step 2: Convert to fraction form
    13,727.73/18,944.22 = 7,440.12/x
  3. Step 3: Cross multiply
    13,727.73x = 18,944.22 × 7,440.12
  4. Step 4: Simplify right side
    13,727.73x = 140,947,270.11
  5. Step 5: Solve for x
    x = 140,947,270.11/13,727.73
  6. Step 6: Final answer
    x = 10,267.34

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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.