Home / 18,786.76-25,926.61-10,403.44

Finding the Fourth Proportional to 18,786.76, 25,926.61 and 10,403.44

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Solution

The fourth proportional to 18,786.76, 25,926.61 and 10,403.44 is: 14,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.76 : 25,926.61 = 10,403.44 : x
  2. Step 2: Convert to fraction form
    18,786.76/25,926.61 = 10,403.44/x
  3. Step 3: Cross multiply
    18,786.76x = 25,926.61 × 10,403.44
  4. Step 4: Simplify right side
    18,786.76x = 269,725,931.54
  5. Step 5: Solve for x
    x = 269,725,931.54/18,786.76
  6. Step 6: Final answer
    x = 14,357.24

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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.