Home / 18,725.85-25,842.78-10,768.95

Finding the Fourth Proportional to 18,725.85, 25,842.78 and 10,768.95

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Solution

The fourth proportional to 18,725.85, 25,842.78 and 10,768.95 is: 14,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.85 : 25,842.78 = 10,768.95 : x
  2. Step 2: Convert to fraction form
    18,725.85/25,842.78 = 10,768.95/x
  3. Step 3: Cross multiply
    18,725.85x = 25,842.78 × 10,768.95
  4. Step 4: Simplify right side
    18,725.85x = 278,299,605.68
  5. Step 5: Solve for x
    x = 278,299,605.68/18,725.85
  6. Step 6: Final answer
    x = 14,861.79

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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.