Home / 13,716.23-18,928.49-8,682.62

Finding the Fourth Proportional to 13,716.23, 18,928.49 and 8,682.62

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Solution

The fourth proportional to 13,716.23, 18,928.49 and 8,682.62 is: 11,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.23 : 18,928.49 = 8,682.62 : x
  2. Step 2: Convert to fraction form
    13,716.23/18,928.49 = 8,682.62/x
  3. Step 3: Cross multiply
    13,716.23x = 18,928.49 × 8,682.62
  4. Step 4: Simplify right side
    13,716.23x = 164,348,747.79
  5. Step 5: Solve for x
    x = 164,348,747.79/13,716.23
  6. Step 6: Final answer
    x = 11,982.07

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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.