Home / 18,743.40-25,865.94-10,786.08

Finding the Fourth Proportional to 18,743.40, 25,865.94 and 10,786.08

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Solution

The fourth proportional to 18,743.40, 25,865.94 and 10,786.08 is: 14,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.40 : 25,865.94 = 10,786.08 : x
  2. Step 2: Convert to fraction form
    18,743.40/25,865.94 = 10,786.08/x
  3. Step 3: Cross multiply
    18,743.40x = 25,865.94 × 10,786.08
  4. Step 4: Simplify right side
    18,743.40x = 278,992,098.12
  5. Step 5: Solve for x
    x = 278,992,098.12/18,743.40
  6. Step 6: Final answer
    x = 14,884.82

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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.