Home / 18,716.04-25,829.96-13,992.12

Finding the Fourth Proportional to 18,716.04, 25,829.96 and 13,992.12

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Solution

The fourth proportional to 18,716.04, 25,829.96 and 13,992.12 is: 19,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.04 : 25,829.96 = 13,992.12 : x
  2. Step 2: Convert to fraction form
    18,716.04/25,829.96 = 13,992.12/x
  3. Step 3: Cross multiply
    18,716.04x = 25,829.96 × 13,992.12
  4. Step 4: Simplify right side
    18,716.04x = 361,415,829.95
  5. Step 5: Solve for x
    x = 361,415,829.95/18,716.04
  6. Step 6: Final answer
    x = 19,310.49

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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.