Home / 18,718.27-25,859.39-12,273.21

Finding the Fourth Proportional to 18,718.27, 25,859.39 and 12,273.21

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Solution

The fourth proportional to 18,718.27, 25,859.39 and 12,273.21 is: 16,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.27 : 25,859.39 = 12,273.21 : x
  2. Step 2: Convert to fraction form
    18,718.27/25,859.39 = 12,273.21/x
  3. Step 3: Cross multiply
    18,718.27x = 25,859.39 × 12,273.21
  4. Step 4: Simplify right side
    18,718.27x = 317,377,662.58
  5. Step 5: Solve for x
    x = 317,377,662.58/18,718.27
  6. Step 6: Final answer
    x = 16,955.50

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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.