Home / 18,358.88-25,308.68-13,571.84

Finding the Fourth Proportional to 18,358.88, 25,308.68 and 13,571.84

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Solution

The fourth proportional to 18,358.88, 25,308.68 and 13,571.84 is: 18,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.88 : 25,308.68 = 13,571.84 : x
  2. Step 2: Convert to fraction form
    18,358.88/25,308.68 = 13,571.84/x
  3. Step 3: Cross multiply
    18,358.88x = 25,308.68 × 13,571.84
  4. Step 4: Simplify right side
    18,358.88x = 343,485,355.57
  5. Step 5: Solve for x
    x = 343,485,355.57/18,358.88
  6. Step 6: Final answer
    x = 18,709.49

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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.