Home / 18,241.65-25,139.07-13,197.33

Finding the Fourth Proportional to 18,241.65, 25,139.07 and 13,197.33

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Solution

The fourth proportional to 18,241.65, 25,139.07 and 13,197.33 is: 18,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.65 : 25,139.07 = 13,197.33 : x
  2. Step 2: Convert to fraction form
    18,241.65/25,139.07 = 13,197.33/x
  3. Step 3: Cross multiply
    18,241.65x = 25,139.07 × 13,197.33
  4. Step 4: Simplify right side
    18,241.65x = 331,768,602.68
  5. Step 5: Solve for x
    x = 331,768,602.68/18,241.65
  6. Step 6: Final answer
    x = 18,187.42

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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.