Home / 18,721.80-25,833.97-10,766.59

Finding the Fourth Proportional to 18,721.80, 25,833.97 and 10,766.59

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Solution

The fourth proportional to 18,721.80, 25,833.97 and 10,766.59 is: 14,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.80 : 25,833.97 = 10,766.59 : x
  2. Step 2: Convert to fraction form
    18,721.80/25,833.97 = 10,766.59/x
  3. Step 3: Cross multiply
    18,721.80x = 25,833.97 × 10,766.59
  4. Step 4: Simplify right side
    18,721.80x = 278,143,763.06
  5. Step 5: Solve for x
    x = 278,143,763.06/18,721.80
  6. Step 6: Final answer
    x = 14,856.68

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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.