Home / 18,786.72-25,903.67-14,997.74

Finding the Fourth Proportional to 18,786.72, 25,903.67 and 14,997.74

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Solution

The fourth proportional to 18,786.72, 25,903.67 and 14,997.74 is: 20,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.72 : 25,903.67 = 14,997.74 : x
  2. Step 2: Convert to fraction form
    18,786.72/25,903.67 = 14,997.74/x
  3. Step 3: Cross multiply
    18,786.72x = 25,903.67 × 14,997.74
  4. Step 4: Simplify right side
    18,786.72x = 388,496,497.48
  5. Step 5: Solve for x
    x = 388,496,497.48/18,786.72
  6. Step 6: Final answer
    x = 20,679.31

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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.