Home / 13,581.49-18,738.03-7,914.94

Finding the Fourth Proportional to 13,581.49, 18,738.03 and 7,914.94

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Solution

The fourth proportional to 13,581.49, 18,738.03 and 7,914.94 is: 10,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.49 : 18,738.03 = 7,914.94 : x
  2. Step 2: Convert to fraction form
    13,581.49/18,738.03 = 7,914.94/x
  3. Step 3: Cross multiply
    13,581.49x = 18,738.03 × 7,914.94
  4. Step 4: Simplify right side
    13,581.49x = 148,310,351.92
  5. Step 5: Solve for x
    x = 148,310,351.92/13,581.49
  6. Step 6: Final answer
    x = 10,920.04

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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.