Home / 13,401.49-20,103.78-5,087.71

Finding the Fourth Proportional to 13,401.49, 20,103.78 and 5,087.71

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Solution

The fourth proportional to 13,401.49, 20,103.78 and 5,087.71 is: 7,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.49 : 20,103.78 = 5,087.71 : x
  2. Step 2: Convert to fraction form
    13,401.49/20,103.78 = 5,087.71/x
  3. Step 3: Cross multiply
    13,401.49x = 20,103.78 × 5,087.71
  4. Step 4: Simplify right side
    13,401.49x = 102,282,202.54
  5. Step 5: Solve for x
    x = 102,282,202.54/13,401.49
  6. Step 6: Final answer
    x = 7,632.15

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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.