Home / 13,908.18-19,193.76-7,940.73

Finding the Fourth Proportional to 13,908.18, 19,193.76 and 7,940.73

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Solution

The fourth proportional to 13,908.18, 19,193.76 and 7,940.73 is: 10,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.18 : 19,193.76 = 7,940.73 : x
  2. Step 2: Convert to fraction form
    13,908.18/19,193.76 = 7,940.73/x
  3. Step 3: Cross multiply
    13,908.18x = 19,193.76 × 7,940.73
  4. Step 4: Simplify right side
    13,908.18x = 152,412,465.84
  5. Step 5: Solve for x
    x = 152,412,465.84/13,908.18
  6. Step 6: Final answer
    x = 10,958.48

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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.