Home / 18,640.80-25,713.38-11,923.94

Finding the Fourth Proportional to 18,640.80, 25,713.38 and 11,923.94

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Solution

The fourth proportional to 18,640.80, 25,713.38 and 11,923.94 is: 16,448.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.80 : 25,713.38 = 11,923.94 : x
  2. Step 2: Convert to fraction form
    18,640.80/25,713.38 = 11,923.94/x
  3. Step 3: Cross multiply
    18,640.80x = 25,713.38 × 11,923.94
  4. Step 4: Simplify right side
    18,640.80x = 306,604,894.41
  5. Step 5: Solve for x
    x = 306,604,894.41/18,640.80
  6. Step 6: Final answer
    x = 16,448.05

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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.