Home / 18,786.44-25,923.86-10,402.76

Finding the Fourth Proportional to 18,786.44, 25,923.86 and 10,402.76

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Solution

The fourth proportional to 18,786.44, 25,923.86 and 10,402.76 is: 14,355.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.44 : 25,923.86 = 10,402.76 : x
  2. Step 2: Convert to fraction form
    18,786.44/25,923.86 = 10,402.76/x
  3. Step 3: Cross multiply
    18,786.44x = 25,923.86 × 10,402.76
  4. Step 4: Simplify right side
    18,786.44x = 269,679,693.85
  5. Step 5: Solve for x
    x = 269,679,693.85/18,786.44
  6. Step 6: Final answer
    x = 14,355.02

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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.