Home / 17,187.26-25,776.77-12,561.75

Finding the Fourth Proportional to 17,187.26, 25,776.77 and 12,561.75

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Solution

The fourth proportional to 17,187.26, 25,776.77 and 12,561.75 is: 18,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.26 : 25,776.77 = 12,561.75 : x
  2. Step 2: Convert to fraction form
    17,187.26/25,776.77 = 12,561.75/x
  3. Step 3: Cross multiply
    17,187.26x = 25,776.77 × 12,561.75
  4. Step 4: Simplify right side
    17,187.26x = 323,801,277.74
  5. Step 5: Solve for x
    x = 323,801,277.74/17,187.26
  6. Step 6: Final answer
    x = 18,839.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.