Home / 18,786.47-25,903.32-14,997.50

Finding the Fourth Proportional to 18,786.47, 25,903.32 and 14,997.50

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Solution

The fourth proportional to 18,786.47, 25,903.32 and 14,997.50 is: 20,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.47 : 25,903.32 = 14,997.50 : x
  2. Step 2: Convert to fraction form
    18,786.47/25,903.32 = 14,997.50/x
  3. Step 3: Cross multiply
    18,786.47x = 25,903.32 × 14,997.50
  4. Step 4: Simplify right side
    18,786.47x = 388,484,912.18
  5. Step 5: Solve for x
    x = 388,484,912.18/18,786.47
  6. Step 6: Final answer
    x = 20,678.97

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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.