Home / 13,768.92-18,986.76-11,786.04

Finding the Fourth Proportional to 13,768.92, 18,986.76 and 11,786.04

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Solution

The fourth proportional to 13,768.92, 18,986.76 and 11,786.04 is: 16,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.92 : 18,986.76 = 11,786.04 : x
  2. Step 2: Convert to fraction form
    13,768.92/18,986.76 = 11,786.04/x
  3. Step 3: Cross multiply
    13,768.92x = 18,986.76 × 11,786.04
  4. Step 4: Simplify right side
    13,768.92x = 223,778,712.83
  5. Step 5: Solve for x
    x = 223,778,712.83/13,768.92
  6. Step 6: Final answer
    x = 16,252.45

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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.